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【单选题】
空天飞机在30-100千米高度飞行的速度是音速的（）A.
10-20倍
B.
10-25倍
C.
12-20倍
D.
12-25倍
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举一反三
【多选题】Major ethical issues with brain banking are:
A.
the rights of the persons donating their tissue, the obligations of the brain bank with regard to respect and observance of such rights
B.
informed consent, confidentiality
C.
protection of personal data, collections of human biologic material and their management
D.
transparency & accountability within the organization of a brain bank
【单选题】There're so many kinds of CD players on sale that I can't make up my mind __________ to buy.
A.
what
B.
which
C.
how
D.
where
【单选题】对肝脏在糖代谢中的作用解释不妥的是
A.
维持血糖浓度恒定
B.
通过糖原合成作用调节血糖浓度
C.
通过糖原分解作用调节血糖浓度
D.
通过磷酸戊糖途径调节血糖浓度
E.
通过糖异生作用调节血糖浓度
【多选题】Major ethical issues with brain banking are:
A.
The rights of the persons donating their tissue and the obligations of the brain bank with regard to respect and observance of such rights
B.
Informed consent and confidentiality
C.
Protection of personal data and collections of human biologic material and their management
D.
Transparency and accountability within the organization of a brain bank
【简答题】危险化学品零售业务的店面经营面积(不含库房)应不少于（ ） m2，零售业务的店面应与繁华商业区或居住入口稠密区保持（ ）m以上距离。
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