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【单选题】
( )是一种只能由wait和signal操作所改变的整型变量,它可用于实现进程的同步和互斥。A.
控制变量
B.
锁
C.
整型信号量
D.
记录型信号量
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反馈参考答案：
举一反三
【简答题】世界贸易组织的组织机构有() A部长级会议 B总理事会 C董事会 D争端解决机构和贸易政策审议机构 E秘书处及总干事。
【简答题】试述世界贸易组织的组织机构。
【单选题】When the reached the top of the hill, they _____ so they had to stop for a rest. [ ]
A.
held their breath
B.
out of breath
C.
lost their breath
D.
breathed deeply
【简答题】translate the following phrases into Chinese. pork dumpings deep-fried dough sticks fried egg roast beef roast duck take one's time main course black coffee milk tea vegetable soup
【简答题】简述世界贸易组织的组织机构。
【简答题】E . 补全短语 1 . from..________ 从......时起 2 . _______ a result (of) 结果 3 . so...________ ... 如此......以至于
【单选题】I was amazed at the beauty of the mountain when I reached the top.
A.
excited
B.
astonished
C.
happy
D.
shocked
【单选题】The three men traveled on horseback. It was a long journey. They rode all day long. It was dark when they reached the camp. EFFECT: It was dark when the men reached camp. What was the CAUSE?
A.
They left at dawn.
B.
The journey was long.
C.
the horses were tired.
D.
none of the above
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