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【单选题】
用C2O42-作沉淀剂,重量法测定Ca2+、Mg2+中混合溶中Ca2+含量,测定结果
A.
偏高
B.
偏低
C.
无影响
D.
无法判断
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【单选题】He was out of work due to the global financial crisis; he was sad and discouraged, feeling that he _ his family.
A.
failed
B.
abandoned
C.
ignored
D.
betrayed
【单选题】接闪线属于避雷装置中的一种,它主要用来保护()。
A.
房顶较大面积的建筑物
B.
变配电设备
C.
高压输电线路
【单选题】After being on unemployment for a time due to the financial crisis, he was offered job he now holds.
A.
/; the
B.
the; a
C.
the; the
D.
a; a
【单选题】听力原文:We don't have enough information for our financial plan, but it is due tomorrow. So I'm afraid we'll just have to make do with what we have got. (25)
A.
We'll ask for more time to finish the financial plan.
B.
We'll look for more information for the plan to be implemented.
C.
I'm afraid we'll turn in the financial plan later than expected.
D.
We'll have to finish the plan with the materials available now.
【多选题】镀锡铅钢板的特点是( )。
A.
冲压成形性能好
B.
焊接性能好
C.
质地软
D.
涂装附着能力差
【单选题】接闪线属于避雷装置中的一种,它主要用来保护( )
A.
变配电设备
B.
房屋较大面积的建筑物
C.
高压输电线路
【单选题】接闪线属于避雷装置中的一种,它主要用来保护()。
A.
变配电设备
B.
高压输电线路
C.
房顶较大面积的建筑物
【单选题】Due to the financial crisis, developing countries
A.
found export fatalism more fit to them.
B.
are having problems in export.
C.
began to keep their currencies expensive.
D.
became the certain cause of America's financial crisis.
【单选题】接闪线属于避雷装置中的一种,它主要用来保护()
A.
变配电设备。
B.
房顶较大面积的建筑物。
C.
高压输电线路。
【单选题】The company's profit drop _____ in the last three months of 2009 due to the financial crisis. [     ]
A.
narrowly
B.
sharply
C.
roughly D widely
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