问题
单项选择题
刺激神经干时，运动纤维的兴奋双向传导，向下传导引起肌肉兴奋，其电反应为()
A．F波
B．M波
C．H波
D．F反应
E．P反应
答案
参考答案：B
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刺激神经干时，运动纤维的兴奋双向传导，向下传导引起肌肉兴奋，其电反应为()
A．F波
B．M波
C．H波
D．F反应
E．P反应
参考答案：B
| 用方框中所给词语的适当形式填空，使短文正确、通顺、连贯。(每词限用一次) | |
First we took the underground to the centre of Beijing, and then 1 to the bus to the Temple of Heaven. We visited the places of 2 there and had a wonderful 3 . Then we 4 a bus to Beijing Amusement Park. We 5 hide-and-seek there. We were tired 6 we enjoyed ourselves. We went back home 7 bus and underground. Tomorrow we 8 to the World Park in Beijing. I'm very excited 9 I will see lots of great places 10 all of the world. 1.___________ 2.___________ 3.___________ 4.___________ 5.____________ 6.___________ 7.___________ 8.___________ 9.___________ 10.____________ |