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【单选题】Doctors are to begin a trial of a drug treatment that could double the time transplanted organs survive in the body. The 20-minute procedure effectively coats donor organs in a protective shield that ...
A.
Because they are painful after transplants.
B.
Because drugs can ease the burden of organs.
C.
Because the body still reacts enough to cause transplants to fail.
D.
Because the donor organs will fail in a very short time.
【单选题】用PowerPoint制作课件，其一般步骤是（ ）①美化课件和设置动画效果 ②设计提纲③放映调整④制作幻灯片
A.
①②③④
B.
②①④③
C.
②③④①
D.
②④①③
【判断题】项目承担单位对科研不端行为当事人的惩处措包括:警告、通报批评、责令其接受定期审查、禁止其一定期限内参与项目承担单位承担或组织的科研活动、记过、降职、解职、解聘、辞退或开除等。( )
A.
正确
B.
错误
【单选题】甲、乙共同继承平房两间，一直由甲居住。甲未经乙同意，接该房右墙加盖一间房，并将三间房屋登记于自己名下，不久又将其一并卖给了丙并进行了过户登记。下列哪种说法是正确的？（ ）
A.
甲、乙是继承房屋的按份共有人
B.
加盖的房屋应归甲所有
C.
加盖的房屋应归甲、乙共有
D.
乙有权请求丙返还所购三间房屋
【单选题】工业企业工作场所一般作业面，视觉作业分类为Ⅴ等，识别对象的最小尺寸范围在1.0mm＜d≤2.0mm之间，其一般照明的照度范围为（）。
A.
75、100、150lx
B.
50、75、100lx；
C.
30、50、75lx
D.
20、30、50lx
【单选题】Doctors are to begin a trial of a drug treatment that could double the time transplanted organs survive in the body. The 20-minute procedure effectively coats donor organs in a protective shield that ...
A.
It is developed by researchers in US.
B.
It can extend the life of implanted organs.
C.
It is independent of defense mechanism.
D.
It can improve patients’ health.