搜题请搜索小程序“爱下问搜题”
问题 单项选择题

不允许其他事务对这个锁定目标再加上任何类型锁的锁是

A．共享锁

B．排他锁

C．共享锁或排他锁

D．以上都不是

答案

参考答案：B

解析： 不允许任何其他事务对这个锁定目标再加上任何类型锁的锁是排他锁。

单项选择题

下述描述中，哪项不符合慢性粒细胞白血病（）

A.约90%出现Ph染色体

B.周围血白细胞数量明显增高

C.骨髓内大量原始粒细胞

D.脾明显肿大

E.肝肿大
查看答案
单项选择题

The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some (21) in the dirt for the monkeys. The monkeys liked their taste, but they found the dirt (22) .
One clever 18-month-old monkey found she could (23) the problem by washing the sweet potatoes in a nearby river. She taught this to her mother. Her (24) also learned this new way and they taught their mothers too.
All the younger monkeys (25) learned to wash the dirty sweet potatoes to make them (26) to eat. But many old monkeys found it very hard to learn this and still ate the (27) sweet potatoes.
Then something very strange (28) In the autumn of 1958, scientists found that the monkeys on other nearby (29) began washing their sweet potatoes too. Scientists still don’t fully understand how this knowledge was (30) from one island to another.

Ⅱ. 完形填空

/Close
阅读下面短文，掌握其大意，然后再各题所给的四个选项(A、B、C和D)中选出一个最佳选项。

A．nicer

B．smaller

C．lighter

D．drier
查看答案