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【判断题】
数据块是Oracle数据库读/写数据的最小存储单元，它的大小由初始化参数db_block_size决定，在Oracle数据库创建决定了db_block_size的值。A.
正确
B.
错误
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【判断题】Grug
tells the bear’s story because he wants the kids to try something new.
A.
正确
B.
错误
【简答题】A．He would leave the bear alone. B．He would pray for the bear. C．He would kill the bear. D．None of the above.
【简答题】阅读理解。 The polar bear is a very big white bear. We call it the polar bear because it lives inside the Arctic near the North Pole. There are no polar bears at the South Pole. The polar bear lives in the...
【多选题】按照伺服驱动系统控制方式的不同，可将数控机床分为()。
A.
半闭环控制数控机床
B.
开环控制数控机床
C.
半开环控制数控机床
D.
闭环控制数控机床
E.
半开半闭环控制数控机床
【单选题】BEARS The bear can be a dangerous animal, The adult bear is very strong and it can kill a person. Bears are good at 【C1】______ trees and they can run very fast, But they cannot see well and, 【C2】_____...
A.
climbed
B.
climb
C.
climbing
【单选题】The fox asked the bear to cut a hole in the ice to ______.
A.
help the bear catch more fish
B.
kill the bear in the icy hole
C.
stop the bear from catching any fish
D.
keep the bear from knowing about the fox
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