计算：-0.5-（-314）+2.75-（+712）．_爱下问搜题

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问题解答题

计算：-0.5-（-3

1

4

）+2.75-（+7

1

2

）．

答案

原式=-

1

2

+3

1

4

+2

3

4

-7

1

2

=-8+6

=-2．

选择题

She is very dear to us. We have been prepared to do _________ it takes to save her life.

A．whichever

B．however

C．whatever

D．whoever

问答题简答题

历年深圳最低工资标准是多少？