问题
单项选择题
细胞内外液的渗透压的平衡主要依靠如下哪种物质的移动来维持（）。
A.Na+
B.K+
C.葡萄糖
D.蛋白质
E.水
答案
参考答案：E
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细胞内外液的渗透压的平衡主要依靠如下哪种物质的移动来维持（）。
A.Na+
B.K+
C.葡萄糖
D.蛋白质
E.水
参考答案：E
In the lobby(休息室) after a long day at work, I found myself standing next to a handsome young man with a nice smile. A __ showed what we had in common: I had ____ in New York city from Germany while he had ____ from South America. We exchanged stories about the ____ of starting a new life in a new country. “I’ve been ___an apartment within walking distance from my ____. And what I want is to have a good ____ of Central park! But I’m dreaming. I can’t ____ to rent a room like that myself and I haven’t found a roommate to share in expenses.” The young man wrote a ___ down on a piece of paper. “Her name’s Carol and she is a good girl,” he said. “You’ll ____ her, and she needs a roommate.” I called her right away. “I’ve been ___ to hear from you,” said Carole, who lived near Central Park. ___, she became my best roommate, and has been my ___ for 34 years. “We were sure lucky to ____ each other,” Carole said to me recently. “But I wondered what took you so ____ to call.” I said. “I called right after I ____ your South American friend.” Carole looked amazed. “Not a friend, ___ I met him only once, and he told me about you. But that was a whole week before you finally ____.” “But I don’t understand; I didn’t know him until that afternoon.” “Maybe he know of you before because you were ____ known in the company for your achievement.” Though you are a small potato, if you work hard and do ___, people will find you sooner or later.
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