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【单选题】
某 1.28g 电解质 MX 2 溶解于 250.0g 水中(水的 K f = 1.86 K·kg·mol -1 ),测得此溶液的凝固点降低值为 0.159°C ,则该物质的相对分子质量为( )
A.
20
B.
30
C.
60
D.
120
E.
180
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举一反三
【单选题】You can never imagine ships at _____ sea will meet with _____ sea of difficulties. [     ]
A.
the; a
B.
the; /
C.
the; the
D.
/; a
【多选题】下列哪几种情况属于条约的冲突?( )
A.
一个多边公约的两个当事国之间缔结了一个违反该多边公约的条约
B.
两个国家可能在签订一个条约以后,又就同一事项签订另一新的内容不同的条约
C.
一国家已和另一国缔约承担某种义务,后来又与一第三国签订与该种义务互不相容的条约
D.
条约与缔约国的国内法冲突
【单选题】Can you imagine how you would feel if you fell dangerously ill and could not reach or call a doctor? Millions of people 【C1】______ the world are in this unfortunate 【C2】______ , living in distant plac...
A.
all over
B.
through
C.
on
D.
within
【简答题】完形填空。 Can you imagine what life would be like if there was no telephone? You could not 1 your friends on the phone and talk to them. lf fire 2 out to your house, you 3 call the fire department. If som...
【单选题】Can you imagine how you would feel if you fell dangerously ill and could not reach or call a doctor? Millions of people 71 the world are in this unfortunate 72,living in distant places73there are no r...
A.
on
B.
through
C.
all over
D.
within
【简答题】辨别分析题:在社会主义市场经济条件下,为人民服务已经过时了。
【判断题】熟悉待修电子仪器的工作原理是维修的前提。
A.
正确
B.
错误
【简答题】IMAGINE if there was a device that could do everything for you – wake you up every morning, chat with you and type your e-mails. The piece of technology in question would be smart, able to tell you ab...
【单选题】Imagine that you are in hospital, waiting to have an operation. It is time to go to the theatre the anesthetist approaches you and speaks. But instead of the reassuring words' I'm just going to give y...
A.
a cinema in a hospital
B.
a place where plays are on show
C.
an operating mom
D.
a room where an anesthetic is given
【多选题】下列哪几种情况属于条约的冲突?( )
A.
一个多边公约的两个当事国之间缔结了一个违反该多边公约的条约
B.
条约与缔约国的国内法冲突
C.
两个国家可能在签订一个条约以后,又就同一事项签订另一新的内容不同的条约
D.
一国已和另一国缔约承担某种义务,后来又与第三国签订与该种义务互不相容的条约
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