直接写的数．120÷5=130×3=1600×5=420÷7=105×4=448

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问题解答题

答案

120÷5=24

130×3=390

1600×5=8000

420÷7=60

105×4=420

448÷4=112

420÷7=60

600×8=4800

21×4+0×21=84

32×8+32×2=320

选择题

In class, fewer of the students who are not ______ their studies sometimes ______ the dying robots, not listening attentively.

A．accustomed to; are functioned as

B．addicted to; function as

C．sceptical about; are functioned

D．accurate in; function

单项选择题

工程项目总控的核心是（）。

A．费用控制

B．合同控制

C．进度控制

D．质量控制