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【单选题】
根据恩格尔定律,随着家庭收入增加,占家庭收入比重大体不变的支出项目是 【 】
A.
燃料支出
B.
冷藏支出
C.
交通支出
D.
住宅支出
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皮皮学刷刷变学霸
举一反三
【判断题】暴露金属最少的卡环是间隙卡环
A.
正确
B.
错误
【单选题】糖原合成时需要的是
A.
GTP
B.
ATP
C.
两者都需要
D.
两者都不需要
【单选题】暴露金属最少的卡环是
A.
单臂卡环
B.
臂卡环
C.
间隙卡环
D.
I杆卡环
E.
T型卡环
【单选题】--What were you up to when she dropped in?--I ______ for a while and ______ some reading.
A.
was playing, was going to do
B.
played, did
C.
had played, was going to do
D.
had played, did
【单选题】可用于治疗白细胞减少症的细胞因子是
A.
IL-2
B.
IFN-γ
C.
EPO
D.
M-CSF
【判断题】墙背与填土之间存在的摩擦力,将使主动土压力减小和被动土压力增加。(    )
A.
正确
B.
错误
【单选题】—What were you up to when she dropped in?—I ______ for a while and ______ some reading.
A.
was playing, was going to d0
B.
played, did
C.
had played, was going to do
D.
had played, did
【单选题】What does the woman suggest the man to do?
A.
Read some novels in English.
B.
Read some easy articles in English first.
C.
Borrow some articles in English.
【判断题】缩短制造周期可以提高企业竞争能力。
A.
正确
B.
错误
【单选题】Some people suggest changing the date for the college entrance exams into ______ Saturday and Sunday of the first week of June, which I think is ______ good advice. [     ]
A.
/ ; /
B.
the; the
C.
the; a
D.
the; /
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