染色体必须的组成部分包括()
A.单一序列
B.中度重复序列
C.高度重复序列
D.自主复制序列(ARS),
E.着丝粒序列(CEN)
F.端粒序列(TEL)
参考答案:D, E, F
英语谜语
1. A cat, eyes like a cat, a tail (尾巴) like a cat, but isn't a cat? _________
2. What is in the center (中心) of the water? _________
3. Two little brothers, One lives (居住) on one side (边).
The other on the other side. They hear (听见) what you say (说),
but they do not see (看) each other. (互相) _________
患者,女,39岁,停经4个月,身体渐消瘦,潮热盗汗,五心烦热,舌红少苔,脉细数,首选方()
A.柏子仁丸
B.百合固金汤
C.两地汤
D.加减一阴煎
E.保阴煎