【题目】Only when I left my parents for Italy ________ how much I loved them.
A.I realized B.I had realized
C.had I realized D.did I realize
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【题目】探究温度对果胶酶活性影响的实验中,得到如下实验结果。据此分析不正确的是( )
A.实验过程中应先将苹果泥和果胶酶分别调节到对应温度后再混合
B.为了实验结果的科学性,各组混合处理时间和过滤果汁时间均应相同
C.应在50~55℃之间设置更细温度梯度进行实验探究果胶酶的最适温度
D.该实验结果表明高温能使果胶酶失活,但高温也可能促进果胶分解
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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】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】 ___________his technical knowledge was limited, the old worker has a lot of experience.
A. Since B. Unless C. As D. Although
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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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【题目】 It is in the hall behind the teaching building __________ we usually have our PE lessons on rainy days.
A. where B. that C. which D. what
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【题目】 Peter will ________ his post as the head of the travel agency at the end of next month.
A. take up B. put up C. add up D. break up
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【题目】Captain John Smith was among the first to settle in ____________ is called New England now.
A. which B. what
C. the place where D. where
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