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[主观题]
This sound doesn't ______ in Chinese, so it's difficult for the students to pronounce.A.ha
This sound doesn't ______ in Chinese, so it's difficult for the students to pronounce.
A.happen
B.occur
C.come about
D.take place
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
This sound doesn't ______ in Chinese, so it's difficult for the students to pronounce.
A.happen
B.occur
C.come about
D.take place
第1题
血清中的淀粉酶可水解淀粉分子中的何种键
A.α-1葡萄糖苷键
B.β-4葡萄糖苷键
C.α-1、4葡萄糖苷键
D.β-1、4葡萄糖苷键
E.A和C
第4题
α-淀粉酶水解淀粉分子内的______。
(A)α-1,4糖苷键 (B)β-1,4糖苷键 (C)α-1,6糖苷键 (D)β-1,6糖苷键
第5题
α-淀粉酶水解淀粉、糖原和环状糊精分子内的_______。
(A)α-1,6-糖苷键
(B)α-1,4-糖苷键
(C)β-1,6-糖苷键
(D)β-1,4-糖苷键
第6题
麦芽糖酶可水解
A.α-葡萄糖苷键
B.β-葡萄糖苷键
C.α-去氧糖苷键
D.β-果糖苷键
E.S-苷键
第7题
转化糖酶可水解
A.α-葡萄糖苷键
B.β-葡萄糖苷键
C.α-去氧糖苷键
D.β-果糖苷键
E.S-苷键
第8题
杏仁苷酶可水解
A.α-葡萄糖苷键
B.β-葡萄糖苷键
C.α-去氧糖苷键
D.β-果糖苷键
E.S-苷键
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