水稻细胞内合成的某物质,能够在常温下高效分解淀粉,该物质[ ]
A.在4℃条件下易变性
B.只含有C、H
C.也能催化淀粉合成
D.含有羧基
答案:D
关于急性水肿性胰腺炎下列哪项是错误的()
A.出现轻度黄疸
B.疼痛一般较剧烈
C.常继发于胆道疾病
D.大多数患者可出现休克
E.少数患者可出现假性囊肿
句型转换。
1. It was so boring that I fell asleep.
It was ______ ______ ________fall asleep.
2. Although I studied hard, I didn’t do well in the exam.
I studied hard, ______ I wasn’t_____ ______ the exam.
3. Uncle Wang is such a friendly man that he always helps others.
Uncle Wang is so _____ _____ ______ that he always helps others.
4. I will not tell you how the film ends.
I will not tell you ______ ______ of the film.
5. I think people should go and see this film,______ _______?
6. I’m sure that he will pass the exam.
______ _____ ______ ______ pass the exam.