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【单选题】
人民当家作主是社会主义民主政治的（ ）。A.
主要内容
B.
目标
C.
本质和核心
D.
基本要求
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皮皮学刷刷变学霸
举一反三
【单选题】I can’t believe you have finished the work. 一 My friends helped me out. Just as the saying goes,”__________.”
A.
Practice makes perfect
B.
Put all your eggs in one basket
C.
Burn the candle at both ends
D.
Many hands make light work
【多选题】下面有关脂溶性维生素叙述错误的是
A.
不溶于水，在体内可以大量贮存，因而毒性相对较大
B.
脂溶性维生素均可看作是萜类衍生物
C.
每种脂溶性维生素只有一种化学结构
D.
脂溶性维生素主要包括维生素A、D、E、K四类
E.
维生素D的主要功能是促进肠壁对钙磷的吸收，调节钙磷代谢，促进骨、牙等的发育
F.
脂溶性维生素的生理功能已经全部弄清
【单选题】—I could look after when I was five.—Really?I can’t believe it.A．myselfB．herselfC．himselfD．yoursel
A.
—I could look after____when I was five. —Really?I can’t believe it. A．myself
B.
herself
C.
himself
D.
yourself
【单选题】We met Mary and her husband at a party two months ago. ______we've had no further communication.
A.
Thereafter
B.
Thereabouts
C.
Thereof
D.
Thereby
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