题目内容

中心静脉压的高低取决于下列哪项关系

A. 血管容量和血量
B. 动脉血压和静脉血压
C. 心脏射血能力和静脉回心血量
D. 心脏射血能力和外周阻力
E. 外周静脉压和静脉血流阻力

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心迷走神经末梢释放的递质是

A. 组胺
B. 谷氨酸
C. 乙酰胆碱
D. 肾上腺素
E. 去甲肾上腺

The first job for which he applied for is to sell_______.

A. brushes
B. household products
C. newspapers
D. briefcases

A representative in Watkins offered him a job to sell household products in a quite _______ section.

A. rich
B. poor
C. remote
D. nearby

For sevral years, his sales kept the _______ in Watkins.

A. last
B. highest
C. lowest
D. secondary

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