题目内容

What are the ways of environmental hazards entering the human body()

A. Skin
B. Inhalation
C. Injection
D. Oral

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Ovulation occurs on the 14th day of the menstrual cycle()

低碳钢拉伸实验时测量试样的数据不包括()

A. 直径d0
B. 原始标距l0
C. 断后最小截面d1
D. 断后长度l1

How many sperm does an adult man produce per day()

A. 100~200 million
B. 200~300 million
C. 20~30 thousand
D. 10~20 thousand

出血性斑按直径是否大于()mm分为瘀点和瘀斑

A. 0.5
B. 1.0
C. 1.5
D. 2

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