理论上有16个顺反异构体,但有些异构体不稳定,现只发现6个异构体() A.维生素A

题型:单项选择题 B型题

问题:

理论上有16个顺反异构体,但有些异构体不稳定,现只发现6个异构体()

A.维生素A

B.维生素D3

C.维生素B1

D.维生素C

E.维生素E

考点:主管药师药物化学药物化学题库
题型:单项选择题 B型题

One day Tony was crossing the road when he was hit a car. He fell and broke his arm.

He was sent to a hospital. There a doctor operated on his arm. Then he put the arm in a cast(石膏). Tony could not move it at all.

“You must keep your arm in a cast for a month.” The doctor said, “That will give the bone(骨头) a chance to get well”.

A moment later, Tony went back to the hospital. The doctor used a large knife to cut the cast. Then he took Tony’s arm out of the cast.

“Can you move your arm, Tony?” he asked.

Tony tried to move his arm. At last it was difficult, but soon he could move it easily.

“Yes, it’s fine”. He said, “Thank you very much”

“In a few days it will be as good as before.” the doctor said, “Just exercise it a little every day.”

“Will I be able to play the guitar?” Tony asked.

The doctor smiled, “Of course, you will.” He said, “you will have no problems.”

“That’s good news.” Tony said, “Because I couldn’t play it at all before.

小题1:How did Tony break his arm?

A. He was hit by a car      B. He fell off a bike         C.A guitar fell on him

小题2:How long did he have to keep his arm in a cast?

A. One week             B. Four weeks              C.A few days

小题3:How was Tony’s arm when the doctor cut the cast?

A. It was OK            B. It was hurt                  C. It was worse.

小题4:What did the doctor tell him to do after the cast was taken off?

A. See another doctor     B. Play the guitar               C. Exercise his arm.

小题5:Why was Tony pleased?

A. The doctor gave him a guitar.

B. The doctor said he didn’t have to work again

C. He thought he could be able to play the guitar.

题型:单项选择题 B型题

某企业A产品经过两道工序加工完成。A产品耗用的原材料在开始生产时一次投入。生产费用在完工产品和在产品之间分配采用约当产量比例法。2012年2月A产品有关的资料如下:(1)本月完工产品1300件。月末在产品数量及完工程度为:第一道工序500件,本工序在产品完工程度相当于完工产成品的30%;第二道工序200件,本工序在产品完工程度相当于完工产成品的80%,见表一。(2)产品成本计算单有关资料,见表二。要求:根据上述资料,回答第(1)~(3)题。

下列各项中,计算正确的有()。

A.供电车间的交互分配率为0.4

B.锅炉车间的交互分配率为5

C.交互分配时,供电车间应分摊锅炉车间的供气费为3000元

D.交互分配时,锅炉车间应分摊供电车间的电费为4000元

题型:单项选择题 B型题

下列关于法律原则的表述哪一项是错误的

A.法律原则的适用范围比法律规则更广泛

B.法律原则与法律规则相比在适用上容许法官有较大的自由裁量余地

C.法律原则是以“全有或全无的方式”应用于个案当中的

D.相互冲突的法律原则可以共存于一部法律之中

题型:单项选择题 B型题

在常温条件下,水泥稳定土基层的养护时间至少应()天。

A.5

B.6

C.7

D.8

题型:单项选择题 B型题

锅炉主蒸汽压力调节系统的作用是通过调节燃料量,使()与()相适应,以维持汽压的恒定。

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