1997 年
生物 · 共 57 題 · 點擊選項即時核對答案
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51.
Which of the following is not a desirable way of conservation?
52.
Antibiotics can
53.
The diagram below shows the layout of a sewage treatment plant:
The reactions in the anaerobic digester involve the action of
54.
The electricity supply to a refrigerator was accidentally cut off for 24 hours. Which of the following items stored in the refrigerator, if consumed, may lead to food poisoning?
55.
Human beings usually bear one baby at a time because normally
56.
Both the human ovum and sperm
57.
Which of the following cannot be used to measure the growth of a child?