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【单选题】
在一个心动期中,房室瓣开放见于A.
等容舒张期初
B.
等容舒张期末
C.
心室收缩期初
D.
等容收缩期初
E.
等容收缩期末
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皮皮学刷刷变学霸
举一反三
【简答题】ColE1是惟一用作基因工程的自然质粒载体，它具有四环素抗性标记，因而很容易选择。
【单选题】When would Sarah want to hand in her assignment?
A.
Tomorrow.
B.
After the weekend.
C.
Next Monday.
D.
A week after the deadline.
【单选题】When Sarah and I ______ on an article for the school newspaper, we found it difficult to work together.
A.
compiled
B.
gathered
C.
collaborated
D.
collected
【单选题】--- Shall I phone the hotel for information? --- There is no need. Sarah said that she would _______ for the weekend.
A.
put us through
B.
put us up
C.
put us out
D.
put us down
【单选题】When would Sarah like to sit down with James?( )
A.
Today
B.
Some time next week
C.
Any time between today and the end of Friday
D.
This weekend
【多选题】习总书记在“不忘初心、牢记使命”主题教育工作会议上的讲话中指出,整改落实要防止()
A.
虎头蛇尾、久拖不决
B.
搞纸上整改、虚假整改
C.
以简单问责基层干部代替整改责任落实
D.
以整改为名，层层填表报数，增加基层负担
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