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【简答题】
何谓免疫?举例说明免疫的三大功能及功能异常的表现。
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举一反三
【简答题】阅读理解。 Washington D. C. is the capital of the United States. It's the center of the national gov-ernment. It's a busy, working city with a large population. But what is more, Washington is also a city ...
【单选题】Assume a two-country two-good two-input model where the following relationships hold: (K/L) U.S. > (K/L) ROW (K/L) automobiles > (K/L) shoes Where (K/L) U.S. is the capital-labor ratio in the United S...
A.
the relative labor endowment is higher than in the Rest of the World.
B.
the price of automobiles relative to shoes is lower than in the Rest of the World.
C.
the price of shoes relative to automobiles is lower than in the Rest of the World.
D.
the relative capital endowment is the same as in the Rest of the World.
【单选题】关于血管升压素（ADH），错误的是（）
A.
由下丘脑视上核和室旁核的神经元合成
B.
沿下丘脑-垂体束的轴突运输到神经垂体储存
C.
增加远端小管和集合管对水的重吸收
D.
增加远端小管和集合管对NaCl的重吸收
E.
也称血管升压素
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