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【单选题】
关于放射自显影技术,下列哪项表述不正确:A.
利用放射性同位素是探测细胞内生物大分子动态变化的一种方法
B.
包括宏观自显影、光镜自显影和电镜自显影等三种类型
C.
具有灵敏度高和操作简便、无污染等优点
D.
自显影时常用的感光材料有X射线胶片
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反馈参考答案：
举一反三
【单选题】I __________ an invitation from him, but I didn’t __________ it. A. accept , receive B. accepted , receive C. receive , accept D. receive d, accept
A.
accept, receive
B.
accepted, receive
C.
receive, accept
D.
received, accept
【单选题】设指针p指向双链表的某一结点,则双链表结构的对称性可用( )式来刻画。
A.
p->prior->next->==p->next->next
B.
p->prior->prior->==p->next->prior
C.
p->prior->next->==p->next->prior
D.
p->next->next==p->prior->prior
【单选题】Tim will call me as soon as he _____ my package. [ ]
A.
receive
B.
will receive
C.
received
D.
receives
【单选题】There are many ways to receive television signals. What is the latest way to receive television signals in the passage?
A.
Cable network.
B.
Satellite dish antennas.
C.
Electrons.
D.
Wires.
【简答题】采暖管道必须穿过防火墙时，应采取（ ）措施。
【简答题】to receive an order
【单选题】We appreciate your early rely.A. to receive B. having received C. receiving D. receive
A.
to receive
B.
having received
C.
receiving
D.
receive
【多选题】在呼叫处理中,假设现处于等待收号状态,请根据局内呼叫的状态转移图,写出下一个可能出现的状态。
A.
空闲
B.
通话
C.
等待收号
D.
收号
E.
振铃
F.
听忙音
【单选题】设指针p指向双链表的某一节点，则双链表结构的对称性可用( )来描述。
A.
p->prior->next==p->next->next
B.
p->prior->prior==p->next->prior
C.
p->prior->next==p->next->prior
D.
p->next->next==p->prior->prior
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