题目内容

清前期设置五个将军辖区,除盛京、吉林外还有()。

A. 黑龙江、伊犁、西藏
B. 乌里雅苏台、伊犁、黑龙江
C. 库伦、伊犁、云南
D. 蒙古、乌里雅苏台、伊犁

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A. Eliminating the original vegetation from the building site.
B. Marking the houses in an area similar to one another.
C. Deciding where a house will be built.
D. Surrounding a building with wild flowers and plants.

某三元酸H3A的pKa1=3.96、pKa2=6.00、pKa3=10.02,则0.10 mol·L-1Na3A溶液的pH是()。

A. 8.01
B. 10.02
C. 11.51
D. 12.51

下列化合物中,同时有σ→σ*、n→σ*、n→π*、π→π*跃迁的化合物是()。

A. 一氯甲烷
B. 乙醛
C. 1,3-丁二烯
D. 苯酚

A.It doesn't have a nice view.B.It doesn't come with a sauna bath.C.It's too expensive

A. It doesn't have a nice view.
B. It doesn't come with a sauna bath.
C. It's too expensive.
D. It doesn't have a kitchenette.

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