
【名词&注释】
含水量(water content)、单倍体(haploid)、头状花序(head)
[单选题]空胶囊的含水量应控制在( )。
A. 5%~15%
B. 12%~20%
C. 12%~15%
D. 10%~15%
E. 10%~20%
查看答案&解析
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举一反三:
[单选题]红藻门植物的果孢子均是单倍体的。( )
A. 正确
B. 错误
[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
D. 圆锥花序
[单选题]From the last paragraph we can learn that __
A. some pipes have to be re-arranged in winter
B. the system can do more than warming up the building
C. the exchangers will pick up heat from the street surface
D. less heat may be collected in winter than in summer
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