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搜题
【单选题】
儿童第二次接种卡介苗的年龄为( )
A.
6月龄时
B.
9月龄时
C.
1岁
D.
2—4岁
E.
6—7岁
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举一反三
【单选题】青霉素的萃取液脱色时选用(  )
A.
硅胶
B.
活性碳
C.
碱石灰
D.
碳酸钙
【单选题】下列染色体的数目,一般不可能是体细胞的是 [     ]
A.
23条
B.
46条
C.
24条
D.
68条
【判断题】Dragons may not have much real use for all their wealth, but they know it to an ounce as a rule.
A.
正确
B.
错误
【单选题】青霉素的萃取液脱色时选用()
A.
硅胶
B.
活性碳
C.
碱石灰
D.
生石灰
【判断题】Other things equal, the higher the price level, the higher is the real wealth of households
A.
正确
B.
错误
【单选题】The real wealth of Montana, Colorado, Wyoming, Idaho, and California proved to be in the grass and soil. ( )
A.
蒙大拿、科罗拉多、怀俄明、爱达荷以及加利福尼亚等州的真正财富,是埋在草和土里的。
B.
蒙大拿、科罗拉多、怀俄明、爱达荷以及加利福尼亚等州的真正财富是靠出售青草和土壤获得的。
C.
蒙大拿、科罗拉多、怀俄明、爱达荷以及加利福尼亚等州的真正财富是在草原和沃土中。
D.
从草原和土壤中,蒙大拿、科罗拉多、怀俄明、爱达荷以及加利福尼亚等州获得了真正的财富。
【单选题】A sharp increase in stock prices makes people much wealthier. If the main effect of this increased wealth is felt on labor supply, what happens to current employment and the real wage rate?
A.
Both employment and the real wage rate would increase.
B.
Both employment and the real wage rate would decrease.
C.
Employment would increase and the real wage would decrease.
D.
Employment would decrease and the real wage would increase.
【单选题】青霉素的萃取液脱色时选用( )。
A.
硅胶
B.
活性碳
C.
碱石灰
D.
大孔树脂
【单选题】青霉素的萃取液脱色时选用( )
A.
硅胶
B.
活性碳
C.
碱石灰
D.
硅藻土
【单选题】下列染色体数目,一般不可能是体细胞的是(  )
A.
23条
B.
24条
C.
30 条
D.
46条
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