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【多选题】
下列关于结账操作，错误的是（ ）。A.
结账每月可以多次
B.
结账在月末进行
C.
结账在月中进行
D.
结账每月只能一次
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【简答题】【跟读训练1】Lesson 2 请跟读下面段落的音频,并诵读到完全流畅无滞,再听音频能够听懂每句话的程度。 The native Americans, the people we call the 'Indians', had been in America for many thousands of years before Christopher Columbus arrived in 149...
【单选题】盐酸苯海拉明属于
A.
氨基醚类组胺H1受体拮抗剂
B.
乙二胺类组胺H1受体拮抗剂
C.
哌嗪类组胺H1受体拮抗剂
D.
丙胺类组胺H1受体拮抗剂
E.
三环类组胺H1受体拮抗剂
【单选题】赛庚啶属于
A.
氨基醚类组胺H1受体拮抗剂
B.
乙二胺类组胺H1受体拮抗剂
C.
哌嗪类组胺H1受体拮抗剂
D.
丙胺类组胺H1受体拮抗剂
E.
三环类组胺H1受体拮抗剂
【简答题】属于丙胺类H1受体拮抗剂（ ）。
【单选题】The flat is ____ for most of the citizens ____ it. A. so very expensive; to buy B. too expensive; to buy C. as expensive; as to buy D. more expensive; buying
A.
so very expensive; to buy
B.
too expensive; to buy
C.
as expensive; as to buy
D.
more expensive; buying
【单选题】—I paid 200 dollars for the necklace. I think it's much too expensive. —Expensive? I don't agree with you. You so before you _______ it.
A.
should have said; bought
B.
have said; bought
C.
had said; buy
D.
must have said; should buy
【简答题】Did Columbus fulfill his plan of sailing west to reach the Indies ?Why? 2. How long did it take to finish the first voyage?
【单选题】根据下面选项，回答题：
A.
氨基醚类组胺H1受体拮抗剂
B.
乙二胺类组胺H1受体拮抗剂
C.
哌嗪类组胺H1受体拮抗剂
D.
丙胺类组胺H1受体拮抗剂
E.
三环类组胺H1受体拮抗剂 马来酸氯苯那敏属于 查看材料
【简答题】丙胺类H1受体拮抗剂
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