心肌不产生完全强直收缩是由于A.心肌是功能合胞体 B.兴奋传导有房室延搁 C.窦房结

题型:单项选择题

问题:

心肌不产生完全强直收缩是由于

A.心肌是功能合胞体

B.兴奋传导有房室延搁

C.窦房结对潜在起搏点有抑制作用

D.有效不应期特别长

E.收缩期较短

考点:中西医结合执业医师针炙学
题型:单项选择题

阅读理解。

    Skin-diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the

moon! When you are under water, it is easy for you to climb big rocks, because you are no longer heavy.

     Here, under water, everything is blue and green. During the day, there is enough light. When fish swim

nearby, you can catch them with your hands.

     When you have tanks of air on your back, you can stay in deep water for a long time. But you must be

careful when you dive in deep water.

     To catch fish is one of the most interesting parts of this sport. Besides (而且), there are many uses for

skin-diving. You can clean ships without taking them out of the water. You can get many things from the

deep sea.

     Now you see that skin-diving is both useful and interesting.

1. Skin-diving will take you to _____. [ ]

A. the moon

B. be in danger

C. mountains

D. the deep sea

2. You can climb the big rocks under water because _____. [ ]

A. you are stronger

B. the fish nearby help you

C. you are not as heavy as on land

D. there is a lot of light

3. Under water, a skin-diver _____ in the daytimes. [ ]

A. can see everything clearly

B. can't see anything clearly

C. can see nothing

D. can see only fishes

4. With a tank of air on your back, you can _____. [ ]

A. catch fish very easily

B. stay under water for a long time

C. be in safe place

D. have more fun

5. Which of the following sentences is NOT true? [ ]

A. Skin-diving is a new sport.

B. Skin-diving is like visiting the moon.

C. The only use of skin-diving is to have more fun.

D. Skin-diving is both interesting and useful

题型:单项选择题

問9 この機械は、今までのものより(37)ふくざつな(38)こうぞうになっている。

こうぞう  

A.構像

B.講像

C.講造

D.構造

题型:单项选择题

商品在营销过程中的整理、分级、包装等加工,属于()。

A、交易职能

B、生产职能

C、实体职能

D、辅助职能

题型:单项选择题

牛河梁遗址

题型:单项选择题

下列有关天翼对讲业务办理流程要点说法正确的是()。

A.客户需要新开移动号码,提供支持天翼对讲的终端/下载智能机可下载客户端

B.天翼对讲终端选购、新开户和天翼对讲业务开通须一并受理

C.用户补卡要重新办理重新绑定变更业务

D.使用智能机可下载客户端无需选购天翼对讲终端

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