【多选题】【消耗次数：1】
下列各方法中能用来鉴别苯甲酸、环已醇和对甲苯酚的有( )
①
先加溴水，再加碳酸氢钠溶液
②
先加金属钠，再加溴水
③
先加三氯化铁溶液，再加卢卡氏试剂
④
先加碳酸氢钠溶液，再加三氯化铁溶液
⑤
先加氢氧化钠溶液，再加碳酸氢钠溶液
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相关题目
【单选题】
下列关于碳酸氢钠的叙述不正确的是
①
增强弱碱性药物的作用
②
促进苯巴比妥从尿中排泄
③
现阶段很少用于消化性溃疡的治疗
④
促进阿司匹林的吸收
⑤
防止磺胺类药物在尿中析出结晶
【单选题】
苯巴比妥中毒后应用碳酸氢钠的主要目的是：
①
加速药物从尿液的排泄
②
加速药物在肝脏的代谢灭活
③
加速药物由脑组织向血浆的转移
④
减少药物的吸收
⑤
提高机体对前者的耐受力
【单选题】
服用抗痛风药时，宜同服碳酸氢钠而不宜多食醋是（）。
①
为增加药物对消化系统的刺激
②
有利于尿酸的排泄
③
减少药物对胃肠的刺激
④
减少药物对胃肠的刺激和利于尿酸的排泄
⑤
为减少药物对消化系统的刺激
随机题目
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If I ___ it, I would do it in a different way.
①
were to do
②
do
③
had done
④
was to do
【单选题】
If he ___ he ___ that food.
①
was warned; would not take
②
had been warned; would not have taken
③
would be warned; had not taken
④
would have been warned; had not taken
【单选题】
Information has been put forward ___ more middle school graduates will be admitted into universities.
①
while
②
that
③
when
④
as
【单选题】
The order came ___ the soldiers ___ the small village the next morning.
①
that; had to leave
②
that; should leave
③
/; must leave
④
when; should leave
【单选题】
The question came up at the meeting ___ we had enough money for our research.
①
that
②
which
③
whether
④
if
【判断题】
I have waited for two weeks impatiently and finally the order was cancelled.
①
正确
②
错误
【单选题】
___ is no possibility ___ Bob can win the first prize in the match.
①
There; that
②
It; that
③
There; whether
④
It; whether
【单选题】
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, ___ at the other store.
①
anyone
②
the others
③
that
④
the ones