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【单选题】
Shhh, please keep quiet. My mother _____.A.
is sleep
B.
sleep
C.
is sleeping
D.
slept
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于蛋白质亚基的叙述正确的是
A.
一条多肽链卷曲成螺旋结构
B.
两条以上多肽链形成二级结构
C.
两条以上多肽链与辅基结合合成蛋白质
D.
每个亚基都具有各自的三级结构
E.
以上都不是
【单选题】The phrase 'cooped up' in the second paragraph probably means
A.
mobilized.
B.
captivated.
C.
confined.
D.
shoved.
【单选题】－Can you tell me Kitty’s address. －I don’t know, either. But I’ll tell you her address when she ______ to me.
A.
writes
B.
write
C.
wrote
D.
written
【单选题】The phrase 'scarcely that' (Para. 3, Line 4) means ______.
A.
just like that
B.
almost not like that
C.
more than that
D.
not at all like that
【简答题】you are almost out of control because of a particular feeling. (a phrase)
【单选题】The underlined phrase in Paragraph 3 refers to______.
A.
in the enterprise of
B.
within the corporation of
C.
among the squad of
D.
accompanied by
相关题目：
【单选题】关于蛋白质亚基的叙述正确的是
A.
一条多肽链卷曲成螺旋结构
B.
两条以上多肽链形成二级结构
C.
两条以上多肽链与辅基结合合成蛋白质
D.
每个亚基都具有各自的三级结构
E.
以上都不是