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问题 单项选择题

神经肌肉本体感觉促进法(PNF)中运动行为的发育最早表现为

A．双侧不对称模式

B．双侧对称模式

C．双侧反转模式

D．单侧分离模式

E．单侧联合模式

答案

参考答案：B

解析：运动行为的发育最早表现为双侧对称模式。

改错题

As the College Entrance Examination is drawing nearby, some students would rather expect

good luck than to make every effort to study．They think success results good luck．Whether they can be admitted to key universities depend on luck．However, others insist that diligence is a mother of success．Only by working hard can they achieve what they want．Since they fail sometimes, they don’t give up, for they believe that success lies in our own hands．As for me, I’m in favor of the latter opinion．Luck doesn’t come alone．It goes hand by hand with hard working．Sometimes, some students are lucky enough to succeed, but such luck won’t last long because it is not basing on their own abilities．
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单项选择题

一个基本的ADSL系统由局端收发机和用户端收发机两部分组成，收发机实际上是一种高速 ( )。

A．路由器

B．集线器

C．调制解调器

D．多路复用器
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