【单选题】【消耗次数：1】
That day he_______his clothes before he came to see me.
①
has washed
②
washed
③
had been washing
④
was washed
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相关题目
【单选题】
That day he ___________ his clothes before he came to see me.
①
has washed
②
washed
③
had been washing
④
was washed
【单选题】
That day he ___ his clothes before he came to see me.
①
has washed
②
washed
③
had been washing
④
was washed
【单选题】
Before he came to New York, he had never heard a single English word（）.
①
speak
②
to speak
③
spoke
④
spoken
【单选题】
He said that his sister ?[填空]been there one week before
①
had
②
has
③
have
④
will have
【单选题】
I went to the doctors yesterday. I had to wait for half an hour before he________see me.
①
can
②
may
③
might
④
could
【单选题】
I went to the doctor’s yesterday. I had to wait for half an hour before he ___ see me.
①
?can
②
?may
③
?might
④
?could
【单选题】
Jack is so ____ to his appearance that he never has his clothes pressed.
①
adverse
②
anonymous
③
indifferent
④
casual
【单选题】
Jack is so _____ to his appearance that he never has his clothes pressed.
①
adverse
②
anonymous
③
indifferent
④
casual
随机题目
【单选题】
某传动装置中有一对渐开线。标准直齿圆柱齿轮（正常齿），大齿轮已损坏，已知小齿轮的齿数z1=24，齿顶圆直径da1=78mm，中心距a=135mm，齿顶高系数ha*=1，顶隙系数c*=0.25。大齿轮的模数（ ）。
①
1mm
②
1.5mm
③
2.5mm
④
3mm
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/ADAE26501F31170E1D4D6F30D16B7D02.png title=QQ截图20180308103510.png alt=QQ截图20180308103510.png/>CD段的轴力？
①
—60kN
②
0N
③
60kN
④
80kN
【单选题】
如图所示一矩形截面梁，已知承受载荷F=10kN，材料的许用应力[s]=160MPa。求梁B端的约束力？<img src=https://huaweicloudobs.ahjxjy.cn/AA465D23477CFC14472B1F7EC7C3C9BB.png title=1.png alt=1.png/>
①
0N
②
5N
③
10kN
④
5kN
【单选题】
机构具有确定相对运动的条件是（? ）。
①
机构的自由度数目大于主动件数目
②
机构的自由度数目大于或等于主动件数目
③
机构的自由度数目小于主动件数目
④
机构的自由度数目等于主动件数目