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【单选题】
细胞的结构和生命活动的物质基础是构成细胞的化合物，下列有关这些化合物功能叙述，正确的是A.
生命活动由蛋白质调节
B.
干种子因缺乏自由水不能萌发
C.
多糖是植物细胞的直接能源物质
D.
一切生物的遗传物质都是DNA
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Many summer insomniacs ______.
A.
can't make up for the sleepless nights
B.
sleep in the afternoons
C.
can get extra sleep at night
D.
can never sleep well
【单选题】After a sleepless night, she looked very __________.
A.
ghastly
B.
horrible
C.
afraid
D.
scared
【单选题】听力原文：M: How are you doing with your essay, Mary? W: After two sleepless nights, I'm finally through with it. What do we learn from this conversation?
A.
The man thought the essay was easy.
B.
The woman had a hard time writing the essay.
C.
The woman thought the essay was easy.
D.
Neither of them has finished the essay yet.
【单选题】After several sleepless nights, Mr. Smith ______ a perfect solution to the problems.
A.
kept up with
B.
put up with
C.
came up with
D.
ended up with
【单选题】JQuery 中下列哪个方法 用来遍历选中的 DOM 节点 ?
A.
removeClass()
B.
each()
C.
className()
D.
indexOf()
相关题目：
【单选题】After a sleepless night, she looked very __________.
A.
ghastly
B.
horrible
C.
afraid
D.
scared