
【名词&注释】
葡萄酒(wine)、水解反应(hydrolysis)、加成反应(addition reaction)、合蕊柱(gynostemium)、头状花序(head)
[单选题]没喝完的葡萄酒忘记盖上瓶盖,数天后会变酸。这是由于发生了 ( )
A. 水解反应
B. 氧化反应
C. 酯化反应
D. 加成反应
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举一反三:
[单选题]萝摩科植物花较特化,具多种特殊构造,但并无( )。
A. 副萼
B. 载粉器
C. 花粉块
D. 合蕊柱
[单选题]听第8段材料,回答第10至12题。第10题:How long has the man been in London?
A. One year.
B. A few years.
C. A couple of months.
[单选题]___ they decide which college to go to, students should research the admission procedures.
A. As
B. While
C. Until
D. Once
[单选题]I agree to his suggestion the condition that he drops all charges.
A. by
B. in
C. on
D. to
[单选题]属有限花序中的简单花序。
A. 穗状花序
B. 多歧聚伞花序
C. 头状花序(head)
D. 圆锥花序
[单选题]48
A. much
B. still
C. hardly
D. quite
[单选题]不整齐花是原始的,整齐花是进化的。( )
A. 正确
B. 错误
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