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【单选题】
以下哪一项是细胞的遗传物质（）A.
脱氧核糖核酸
B.
中心体
C.
蛋白质
D.
核糖体
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反馈参考答案：
举一反三
【单选题】下述关于铋剂的描述，错误的是（）。
A.
牛奶可以促进铋剂的吸收，服药期间应同服牛奶
B.
不得同食高蛋白饮食，如牛奶
C.
剂量过大，可导致铋剂脑病现象
D.
两种铋剂不得联合应用
E.
服药期间大便呈灰黑色属于正常现象
【单选题】The band is just back from a sell-out European _____.
A.
tourer
B.
tourist
C.
tour
D.
tourism
【单选题】下述关于铋剂的描述,错误的是
A.
牛奶可促进铋剂的吸收,服药期间应同服牛奶
B.
不得同食高蛋白饮食,如牛奶
C.
剂量过大时,可导致铋剂脑病现象
D.
两种铋剂不宜联用
E.
服药期间大便呈灰黑色属于正常现象
【单选题】I first became aware of the unemployment problem in 1928. At that time I had just come back from Burma, where unemployment was only a word, and I had gone to Burma when I was still a boy and the post-...
A.
They imagined they were to blame for being out of work.
B.
They had to live no the unemployment benefits.
C.
They should have been working instead of doing nothing.
D.
They had to admit that unemployment would probably continue
【简答题】有原子序数依次增大的A、B、C、D、E五种元素，A是短周期中族序数等于周期数的非金属元素；B元素的原子既不易失去，也不易得到电子，其基态原子每种轨道中电子数相同；C元素的价电子构型为ns n np n ＋1 ；D的最外层电子数与电子层数之比为3∶1；E是地壳中含量仅次于铝的金属元素，其合金用途最广，用量最大。 (1)B与D形成的非极性分子中中心原子的孤电子对数是________，中心原子的杂化轨道...
【简答题】The band is just back from a sell-out European __________.
【单选题】听力原文：M: Hi, Rose. I just bought a four-band radio which can receive short-wave programs very well. W: Really? I've got a ten-band one and it has less jamming. It's a world-receiver, you know. Q: What ...
A.
The woman's radio can receive more programs than the man's.
B.
The woman's radio can't receive programs as well as the man's.
C.
The four-band radio can receive programs with less jamming.
D.
The man's radio is also a world-receiver.
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