题目内容

Java语言是1995年由( )公司发布的。

A. Sun
B. Microsoft
C. Borland
D. Fox Software

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国家标准规定，硅酸盐水泥的初凝时间不得短于45min，终凝时间不得长于（）h。

A. 5.0
B. 6.5
C. 8.5
D. 10

In my opinion, she left the letter there ______ so that you'd see it.

A. technically
B. eagerly
C. normally
D. deliberately

As a policeman, Mr. Brown thought that he had a duty to ______ the lost children in finding their homes.

A. assist
B. help
C. provide
D. support

The ______ on his face told me that he was angry.

A. impression
B. sight
C. appearance
D. expression