【题目】
She writes very well that English isn't her first language.
A. seeing
B. supposing
C. judging
D. providing
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【题目】 (2014·北京) _________ the forest park is far away, a lot of tourists visit it every year.
A. As B. When C. Even though D. In case
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【题目】为探究膜的透性,某同学进行如下实验,甲图为实验开始状态,乙图为实验结束状态。请分析回答:
(1)据图分析,a管与b管液面变化的原因是 。
(2)请在乙图所示实验结果的基础上继续实验,探究蔗糖的水解产物能否通过半透膜。
实验材料:蔗糖酶溶液、斐林试剂、试管、滴管、水浴锅等。
实验步骤:
①向a、b两管分别加入 溶液,水浴加热(或隔水加热)U形管至适宜温度,观察a、b两管内液面的变化。
②一段时间后,吸取a、b两管内适量液体,分别加入A、B两试管中,并加入 ,(50~65℃)水浴加热,观察A、B试管内有无砖红色沉淀。
预测实验现象并作出结论:
① ;
② 。
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【题目】
Using language is a very complex enterprise, there is more to communicate than merely put sentences together.
A. On the other hand
B. However
C. What's more
D. Anyway
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【题目】
I want to hear from her again, , we have been out of touch for more than thirty years.
A. What's more
B. That is to say
C. In other words
D. Believe it or not
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【题目】 Do you believe scientists will ___________ a cure for cancer in the near future?
A. come up B. come up with
C. come about D. bring about
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【题目】The manager demanded that the work ________ by the end of the month.
A.must finish B.would be finished
C.be finished D.must be finished
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【题目】He got when he was crossing the street. He died soon after he was taken to the hospital.
A. run over
B. run after
C. run out
D. run up
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科目:高中地理 来源: 题型:
【题目】(8分)根据人体调节产热的主要途径示意图回答有关问题。
(1)图中TRH是_______激素,B是_________。
(2)寒冷环境中A激素在血液中的含量_____,AB两激素在促进产热方面是__________作用。
(3)常温下,血液中A有增加趋势时,TRH和TSH的分泌量将____,这种调节属于____调节。
(4)人在寒冷环境中,若穿衣太少,会出现X产热,这时机体出现的现象是___________。由下丘脑到X产热,其调节方式是______。
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