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【单选题】
吗啡具有碱性,与盐酸可生成稳定的盐,这是由于吗啡结构中含有哪种功能基团
A.
胺基
B.
叔胺基团
C.
D.
苯基
E.
伯胺基
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参考答案:
举一反三
【单选题】白矾煅制温度应控制在()
A.
100 ℃
B.
150 ~ 160 ℃
C.
180 ~ 260 ℃
D.
300 ℃
【单选题】白矾煅制温度应控制在
A.
50 ℃
B.
180-260 ℃
C.
300 ℃
D.
300-600 ℃
【判断题】. 液压系统压力取决于负载
A.
正确
B.
错误
【简答题】The severe abnormalities of pregnant women who work with computer terminals is ______ higher than those of pregnant women who don't work with computer terminals.
【多选题】Transportation of pregnant women has been restricted to ____________
A.
pregnant women whose pregnancy exceed 32 weeks (inclusive) can be transported as regular passengers
B.
passengers who have been pregnant for 32 weeks (included) -36 weeks are required to provide the Certificate of Diagnosis within 72 hours before the departure
C.
passengers whose pregnancy exceeds 9 months (36 weeks) and the expected delivery date is within 4 weeks or uncertain, will not be accepted for transportation
D.
pregnant women should accompany by her husband
【简答题】FDA suggests that pregnant women with high blood pressure should consult__________.
【单选题】Taking Lipitor is helpful for .
A.
breast-feeding women
B.
women who are pregnant
C.
adults having heart disease
D.
teenagers with liver problems
【单选题】流水别墅的设计理念,下面的哪个是正确的?
A.
一般意义上的视觉美观和居住舒适
B.
把建筑融入自然,与大自然进行全方位对话
C.
定位在“神圣”与“神秘”性的深刻认识
D.
体现的是尊重、谦和、秩序和约束
【单选题】白矾煅制温度应控制在()
A.
100℃
B.
150℃~160℃
C.
180℃~260℃
D.
270℃~280℃
E.
300℃
【多选题】Keepa卖家可追踪的关键词有()。
A.
秒杀记录
B.
评论数量
C.
排名趋势
D.
历史价格记录
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