Shopping by television will never take _

题型:选择题

问题:

Shopping by television will never take ____ place of shopping in stores, as many experts say, because

many people find shopping at a store ____ great enjoyment.[ ]

A./; a    

B. the; a    

C. a ; the    

D. a; /

考点:定冠词不定冠词
题型:选择题

女性,42岁,表现为贫血和脾大,伴有脱发、皮疹、关节红肿、面部红斑,最可能的诊断是()。

A.自身免疫性溶血性贫血

B.遗传性球形细胞增多症

C.阵发性睡眠性血红蛋白尿

D.G-6-PD缺乏症

E.海洋性贫血

题型:选择题
He made a fire ________ warm himself up.

A. to
B. for
C. so as
D. so that
题型:选择题

NA表示阿伏加德罗常数.下列说法正确的是(  )

A.7.8gNa2O2中含有的阴离子数目为0.2NA

B.标准状况下,2.24LSO3的分子数为0.1NA

C.9.2gNO2和N2O4的混合气中含有的氮原子数为0.2NA

D.1L0.1mol/LAl2(SO43溶液中,Al3+的数目为0.2NA

题型:选择题

与植物细胞相比,动物细胞特有的结构包括()

A.内质网

B.核仁

C.中心体

D.溶酶体

题型:选择题

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