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【单选题】
我国不孕症发病率约为A.
5%
B.
10-15%
C.
7-10%
D.
20%
E.
30%
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反馈参考答案：
举一反三
【单选题】患者,因支原体肺炎入院,予以红霉素静脉滴注。用药3d后,注射部位沿静脉走向出现条索状红线,伴红、肿、热、痛等症状,下列护理措施中哪项是错误的()
A.
患肢抬高
B.
患肢减少活动
C.
50％硫酸镁热湿敷
D.
局部理疗
E.
更换注射部位
【简答题】Universal Studios Hollywood, a park for fun, entertainment, and even learning, is taking its first steps in a 25-year plan to expand itself. The plan is to expand the amusement facilities (设施) and dev...
【单选题】-- Let’s see the pandas first. -- __________.
A.
Why do you ask me?
B.
That sounds great. Let’s go.
C.
What animals do you like?
D.
No, I don’t.
【单选题】--Liz got the first prize in the speech contest. --____! She’s so shy that she even can’t speak in front of her friends.
A.
You’re kidding
B.
You're welcome
C.
Thank you
D.
That’s nothing
【简答题】设随机变量X～N(1，4)，求函数的数学期望E(X 2 )．
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