参考答案:B
[考点评析] 正常月经的临床表现:周期一般为28天左右,经期3~7天.经量50~80ml,经色暗红色,经质不稀不稠、不凝结、无血块、无特殊气味,伴随症状经期一般无明显不适,或有轻微不适,但
第31题:[单选题]一般轧辊的辊头的作用是( )。
A.便于吊装
B.传递扭矩
C.安装轴承座
D.传动
参考答案:B
第32题: [单项选择]What does the woman suggest the man do to make his work easier
A. Spend more time in the library.
B. Write just one paper for all his classes.
C. Drop one of his courses.
D. Do his research on closely related topics.
参考答案:D
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