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【简答题】
前几日持续雾霾,空气严重污染,于是网上流传:雾霾天吃木耳猪血可清肺,(搜索次数650万次)。于是,人们疯抢木耳、猪血,致使超市中两件商品价格上涨,甚至出现滞销。 真相:雾霾颗粒物进入呼吸系统产生危害,而木耳、猪血等是进入消化道,在肠道中通过膳食纤维吸附一些有害物质,阻拦不了雾霾颗粒物对肺的伤害。饮食清肺也可有作为,针对雾霾的氧化应激损伤机制,增加一些富含维生素A或β胡萝卜素、维生素C等抗氧化营养素的食物摄入是有益的。
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举一反三
【简答题】平面四杆机构中,是否存在死点取决于 是否与连杆共线。
【单选题】听力原文：W: Did you talk to the consultant about the new program? M: No, he's at lunch until two. Q: What does the man mean? (15)
A.
He talked with the consultant until two.
B.
The consultant was leaving at two.
C.
The consultant wanted to talk to him, too.
D.
He couldn't talk to the consultant before two.
【单选题】听力原文：M: Did you talk with our new manager? He is looking for you these days. I think he has something important. W: I have been out of town for 2 days. And until this morning I come back. Q: What does...
A.
She hasn't talked with the new manager yet.
B.
The new manager was not in the office.
C.
She has been at home.
D.
She didn't want to talk with the new manager.
【简答题】But he did not talk at length about the matter, which was not considered by the White House to be a particularly important question. (译成原因状语从句)
【单选题】— What did Paul say last night? — He said _________ listening to the radio program—“Teen Talk”.
A.
did he like
B.
that he liked
C.
if he likes
D.
what he liked
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