【判断题】【消耗次数：1】
对于使用闭环控制电子燃油喷射系统和三效催化转化器的车辆，《点燃式发动机汽车排气污染物限值及测量方法（双怠速法和简易工况法）》（GB18285—2005）规定，检测的过量空气系数（λ）若超出规定范围，可提供故障分析的参考，不作为排放不合格的判定依据。
①
正确
②
错误
参考答案：
复制
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相关题目
【判断题】
我国GB18285－2005《点燃式发动机汽车排气污染物排放限值及测量方法》规定，装用点燃式发动机的新生产汽车的型式核准和生产一致性检查以及在用汽油车的排放检查采用双怠速法。（）
①
正确
②
错误
【单选题】
我国GB18285－2005《点燃式发动机汽车排气污染物排放限值及测量方法》规定，装用点燃式发动机的新生产汽车的型式核准和生产一致性检查以及在用汽油车的排放检查采用（）法。
①
高怠速
②
低怠速
③
怠速
④
双怠速
【多选题】
为了改善发动机的排气污染，尤其是CO、碳氢化合物和氮氧化合物的排放，有的发动机设置了（ ）。
①
闭环控制
②
EGR系统
③
燃油蒸汽排放控制系统
④
二次空气喷射控制系统
随机题目
【单选题】
设<img class=jc-formula data-tex=0P(A)1,0P(B)1,P(A\left| B \right) +P(\overline { A } \left| \overline { B } \right )=1 src=https://huaweicloudobs.ahjxjy.cn/8A1B3E06E77B99186F1AA8E01E3316C3.png style=vertical-align: middle;/>,则下列结论成立的是
①
事件A和B互不相容；
②
事件A和B互相对立
③
事件A和B互不独立
④
事件A和B互相独立
【单选题】
设A,B,C为三个事件，且A,B相互独立，则以下结论中不正确的是
①
若P(C)=1，则AC与BC也独立.
②
若P(C)=1，则<img class=jc-formula data-tex=A\cup C src=https://huaweicloudobs.ahjxjy.cn/ECFBDDF24996917EA300075A2EF96068.png style=vertical-align: middle; width: 56px; height: 20px; width=56 height=20/>与B也独立.
③
若P(C)=0，则<img class=jc-formula data-tex=A\cup C src=https://huaweicloudobs.ahjxjy.cn/ECFBDDF24996917EA300075A2EF96068.png width=56 height=20 style=font-family: 宋体; font-size: 14px; white-space: normal; vertical-align: middle; width: 56px; height: 20px;/>与B也独立.
④
若<img class=jc-formula data-tex=C\subset B src=https://huaweicloudobs.ahjxjy.cn/5AF7C06E7D78B9242171900D637B5C9F.png style=vertical-align: middle; width: 51px; height: 23px; width=51 height=23/>，则A与C也独立
【单选题】
设A,B为两随机事件，且A<img class=jc-formula data-tex=\supset src=https://huaweicloudobs.ahjxjy.cn/37A4B3C430EFA04CF480D02C0DFECE89.png style=vertical-align: middle; width: 20px; height: 17px; width=20 height=17/>B，则下列式子正确的是
①
P(A<img class=jc-formula data-tex=\cup src=https://huaweicloudobs.ahjxjy.cn/9BD598E68F21E65385221B2250659C3A.png style=vertical-align: middle; width: 22px; height: 14px; width=22 height=14/>B) = P(A)
②
P(AB)=P(A)<img width=99 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>
③
P(B|A)=P(B)
④
P(B-A)=P(B)-P(A)<img width=76 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=83 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=76 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=83 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=76 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=83 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=76 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=83 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=76 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/><img width=83 height=21 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>
【单选题】
设<img src=https://huaweicloudobs.ahjxjy.cn/044358115371A01359D17139122ECBCA.png title=4HLX6P8]}I`9_~4~SXU0NKO.png alt=4HLX6P8]}I`9_~4~SXU0NKO.png style=white-space: normal;/>的一个原函数，且<img src=https://huaweicloudobs.ahjxjy.cn/D2A606CDFF44F27A45F7B9B1AC8D29F9.png title=_3([30DGZ00_8XYG~VS`SK7.png alt=_3([30DGZ00_8XYG~VS`SK7.png style=white-space: normal;/>为奇函数，则<img src=https://huaweicloudobs.ahjxjy.cn/B1EF4D45BB73E79FB3629A58EB3ED0C5.png title=[4B}0%TF4S_IH(RC)J%V]M4.png alt=[4B}0%TF4S_IH(RC)J%V]M4.png style=white-space: normal;/>是（ ）
①
奇函数
②
偶函数
③
非奇非偶函数
④
不确定
【单选题】
It wasn’t until nearly a month later ___ I received the manager’s reply.
①
since
②
when
③
as
④
that
【单选题】
I remember her face but I cannot___ where I met her.
①
recall
②
remind
③
remark
④
remember
【单选题】
If my lawyer ___ here last Saturday, he ___ me from going.
①
had been; would have prevented
②
had been; would prevent
③
were; would prevent
④
were; would have prevented
【单选题】
They have no idea at all ___.
①
where he has gone
②
where did he go
③
which place has he gone
④
where has he gone