更多"[单选题]Many studies indicate that aft"的相关试题:
[单选题]Many studies indicate that after a certain point, one’s productivity and creativity begin to (_____).
A.positive
B.individual
C.decrease
D.candidate
[单选题]33. After so many weeks without rain, the ground quickly ____ the little rain that fell last night.
A.drained
B.digested
C.absorbed
D.soaked
[判断题]NaH2PO4、Na2HPO4、Na3PO4三种溶液均呈碱性。
A.正确
B.错误
[判断题]在Na3PO4溶液中,c(Na+)恰是c(PO43-)的3倍。
A.正确
B.错误
[单选题]100. Certain diseases of the brain are suffered by human beings ____.
A.lonely
B.alone
C.singly
D.solely
[判断题]PO可以引发异丁烯聚合生成聚异丁烯。
A.正确
B.错误
[单选题]If someone asks if you are free at a certain time and invites you to an event, you are not required to commit yourself until you know what the invitation is for.
A. 如果某人要求你在一个特定时候有空，还邀请你参加一个活动，你不必要求你自己有空直到你知道这个邀请是什么。
B. 如果某人问你是否有空，并要求你参加一个活动，如果你不知道邀请是什么内容，也不需要抽出时间去参加。
C. 如果有人问你什么时间是否有空并邀你参加某个活动，在你尚未弄清楚邀请的具体内容之前，你没有必要答应一定参加。
D. 如果某人要求你在一个特定时间有空，还邀请你参与一个事件，在你尚未弄清楚之前，你没有必要把自己交托给他
[单选题]220. Certain programs work better for some _____ for others.
A.and
B.than
C.as
D.almost
[单选题]Those beliefs still （ ）___ among certain social groups.
A.perceive
B.prevail
C.precede
D.pretend
[单选题]21. Big businesses enjoy certain ____ that smaller ones do not have.
A.preferable
B.regulations
C.sequences
D.fragments
[单选题]H2PO4-的共轭碱是( ) 。
A.H3PO4
B.HPO42-
C.PO43-
D.OH-
[单选题]H2PO4-的共轭酸是()。
A. H3PO4
B. HPO42-
C. PO43-
D. OH-
[单选题]Are you certain that this is _____ in his letter?
A.grandfather expressed
B.what grandfather has expressed
C.grandfather has expressed
D.which grandfather has expressed
[单选题]The atmosphere _________certain gases mixed together in definite proportions.
A.composes of
B.is made up
C.consists of
D.makes up of
[单选题]医嘱索米痛0.5g po sos 属于 ( )P214
A.长期医嘱
B.临时医嘱
C.长期备用医嘱
D.临时备用医嘱
E.立即执行医嘱
[单选题] 呼吸衰竭时PO2.PCO2的值为()
A.PO2<50mmHgPCO2>50mmHg
B.PO2<60mmHgPCO2>50mmHg
C.PO2<60mmHgPCO2>60mmHg
D.PO2<40mmHgPCO2>50mmHg
E.PO2<65mmHgPCO2>55mmHg
