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【单选题】
小麦种子萌发时产生淀粉酶,将淀粉水解为麦芽糖、葡萄糖等。小麦种子萌发的最适温度为30℃左右。取适量小麦种子在20℃和30℃培养箱中培养4天后,做如下处理:在3支试管中加入等量斐林试剂并加热至50℃左右,摇匀后观察试管中的颜色。结果是()
A.
甲呈蓝色,砖红色,丙呈无色
B.
甲呈无色,砖红色,丙呈蓝色
C.
甲、蓝色,丙呈砖红色
D.
甲呈浅砖红色,砖红色,丙呈蓝色
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【判断题】批处理必须以go结束。
A.
正确
B.
错误
【简答题】已知 中, 边上的中线AO长为2,若动点 满足 ,则 的最小值是 .
【单选题】( ) means that every cubic foot of ship’s space must be utilized to the best advantage and the broken stowage reduced to the minimum.
A.
The most efficient use of space
B.
The highest possible port speed
C.
The safety of the cargo
D.
The safety of ship and crew
【单选题】Suppose that the equilibrium price in the market for widgets is $5. If a law increased the minimum legal price for widgets to $6,
A.
the resulting increase in consumer surplus would be larger than any possible loss of producer surplus.
B.
the resulting   increase in consumer surplus would be smaller than any possible loss of   producer surplus.
C.
any possible increase   in producer surplus would be larger than the loss of consumer surplus.
D.
any possible increase   in producer surplus would be smaller than the loss of consumer surplus.
【单选题】有具体的时间地点、有组织的、可多人参加的线下活动是微博活动中的( )
A.
线上活动
B.
有奖活动
C.
同城活动
D.
重点活动
【简答题】“The maximum possible value for the PHF is ( ),which occurs when the volume in each interval is constant. The minimum value occurs when the entire hourly volume occurs in a single 15-minute interval. ...
【单选题】设 是边长为 的正 的边及其内部的点构成的集合,点 是 的中心,若集合 ,若点 ,则 的最大值为(    )
A.
B.
C.
【简答题】第二套人民币早期的币种是由( )代为印制的。
【判断题】If a labor market is dominated by a monopolist, it is possible that the imposition of a minimum wage law could INCREASE the amount of employment in that market.
A.
正确
B.
错误
【判断题】甲市甲企业委托乙市乙企业加工一批应税消费品,该批消费品应缴纳的消费税税款应由乙企业向乙市税务机关解缴。( )
A.
正确
B.
错误
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