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【单选题】
催化氧化法测有机物中的碳和氢的含量时,C02和H20所采用的吸收剂( )。
A.
都是碱石棉
B.
都是高氯酸镁
C.
C02是碱石棉,H20是高氯酸镁
D.
C02是高氯酸镁,H20是碱石棉
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【判断题】硅可增强禾谷类作物茎秆的抗倒伏,是必需营养元素。
A.
正确
B.
错误
【单选题】—How long did you stay in here last year? —_____. [     ]
A.
In 1978
B.
Two years age
C.
For three months
D.
When I was born
【简答题】There is no question that fewer agers are on the roads in the US. In 1978, 50% of 16-year-olds had got their first driving licence. In 2008, according to the US Transportation Department, it was j...
【多选题】The year 1978 ________ the reform and opening-up in China.
A.
occurred
B.
saw
C.
witnessed
D.
took place
【多选题】The year 1978 ________ the reforming and opening-up in China.
A.
saw
B.
witnessed
C.
occured
D.
took place
【多选题】The year 1978 ________ the reforming and opening-up in China.
A.
occurred
B.
saw
C.
witnessed
D.
took place
【单选题】—How long did you stay in here last year? —_____. [     ]
A.
In 1978
B.
Two years age
C.
For three years
D.
When I was born.
【单选题】1977—1978 TEXTBOOK INVENTORY FOR SCHOOLS X AND Y BY YEAR OF PURCHASE (as a percent of the 1977 — 1978 inventory) The following 3 question refer to the data above. How many of the inventoried textbooks...
A.
495
B.
940
C.
1020
D.
1435
E.
2800
【简答题】The year l978 saw the openin9—up of China to the outside world. A.1978年,中国向世界开放了。 B.1978年,人们看到中国向世界敞开了大门。 C.1978年,中国人看见世界向中国敞开了大门。 D.1978年看到了中国向世界的开放。
【简答题】The year l978 saw the opening-up of China to the outside world B)1978年,人们看到中国向世界敞开了大门。 C)1978年,中国人看见世界向中国敞开了大门。 D)1978年看到了中国向世界的开放。
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