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【单选题】
血浆胶体渗透压的生理意义主要是A.
调节细胞内外水平
B.
调节血管内外水分交换，维持血容量
C.
维持血管内外电解质的含量
D.
使水分通过血管进入组织液
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皮皮学刷刷变学霸
举一反三
【单选题】绒毛膜促性腺激素的作用是
A.
在妊娠8～10周内维持妊娠
B.
在妊娠8～10周后继续维持妊娠
C.
增加淋巴细胞的活动达到“安胎”效应
D.
抑制黄体分泌孕酮
E.
降低母体利用糖，将葡萄糖转给胎儿
【单选题】Making a fresh start, she found learning _________________.
A.
difficult
B.
enjoyable
C.
horrible
D.
tiring
【单选题】'The turtle — along with a few other Cuora species — was once imported into China by the pet trade. ' in Paragraph 1 means______.
A.
the turtle is a wonderful animal in Chinese history
B.
it is a logical result that Chinese people treat turtles as pets
C.
long time ago, the turtle and some other Cuora species were brought into China as pets
D.
turtle is a delicate food treated by Chinese like a wonder
【简答题】Read the following passage and decide whether they are true (T) or false (F). Tourism is a modern business, or industry. In the days before inexpensive means of transportation, only the wealthy could ...
【单选题】绒毛膜促性腺激素的作用是
A.
抑制黄体分泌雌激素
B.
在早孕期刺激妊娠黄体的生成
C.
调节母体与婴儿的糖、脂肪及蛋白代谢
D.
抑制黄体分泌孕酮
E.
抑制母体排斥反应,维持妊娠
【简答题】四轮驱动的车辆,( )负责将动力分配给前后驱动桥。
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