问题
单项选择题 A1型题
桂枝促发汗作用是通过()
A.抑制汗腺导管对钠离子重吸收
B.兴奋汗腺α受体,使汗腺分泌增加
C.通过兴奋中枢神经系统有关部位而发汗
D.扩张血管,促进血液流向体表
E.增加机体产热
答案
参考答案:D
解析:A、B、C选项为麻黄发汗的机制,而桂枝主要是通过扩张血管而利于发汗和散热。
桂枝促发汗作用是通过()
A.抑制汗腺导管对钠离子重吸收
B.兴奋汗腺α受体,使汗腺分泌增加
C.通过兴奋中枢神经系统有关部位而发汗
D.扩张血管,促进血液流向体表
E.增加机体产热
参考答案:D
解析:A、B、C选项为麻黄发汗的机制,而桂枝主要是通过扩张血管而利于发汗和散热。
用方框内所给词的适当形式填空。 | |
to all their questions. We will all have 2_____ at our homes. So we'll be 3_____ to let robots do most of the 4_____ While making a telephone call, we'll also be able to see the people on the 5_____ end at the same time. A lot of people will live and work under sea or in 6_____ because there will be big towns and 7_____ there. Robots will do most of the work,and people will just 8_____ two. or three days a week. They'll be able to 9_____ to the moon in a spaceship and 10_____ their holidays there. |