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【单选题】
孕产妇首先发生右心衰竭的疾病是A.
妊娠合并二尖瓣狭窄
B.
子痈
C.
羊水栓塞
D.
重型胎盘早剥
E.
产褥感染
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【简答题】固定化酶是固定在载体上并在一定的空间范围内进行的（）酶。
【简答题】He ____ to play ____ before he was 11 years old. A had learned, piano B. had learned, the piano C. has learned, the piano D. learns , piano
【简答题】Read the passage and fill in the blanks with the given words. 阅读下列文章,在空白处填上合适词汇的选项。 A. heavier B. sports C. become D. take E. told Henry, a 17-year-old boy, used to be too fat to p...
【简答题】七、课文填空 (15%) : 1. On Monday, we had a 1 math quiz. I thought it was quite easy and was not 2 3 the results. 2. Afterwards, I got really 4 5 him, and I told him he was not 6 hard enough. He got 7 , 8 i...
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