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问题 单项选择题

染色体结构畸变不包括（）

A.断裂

B.缺失

C.重复

D.易位

E.嵌合

答案

参考答案：E

解析：结构畸变是指染色体出现各种结构的异常，主要的畸变包括缺失、断裂、重复、易位、倒位、等臂染色体、环状染色体、双着丝粒染色体。

单项选择题

A Bluetooth device can be either a master or a slave and any of the devices within a (1) can be the master. There is only one master and there can be up to (2) active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to (3) parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to (4) mode before it can become active. Within a network, all (5) communications are prohibited.

5（）

A．master-to-master

B．master-to-slave

C．slave-to-slave

D．slave-to-master
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问答题 简答题

简评汉武帝币制的改革汉武帝五铢钱币值改革。
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