低合金钢中合金元素的质量分数总和小于（）。
A．15%
B．10%
C．8%
D．5%
参考答案：D
当国际商务谈判进入结束阶段时谈判已全部了结。( )
It is reported that many battles broke out in the Middle East. What’s your ______ of the situation there?
A．assessment
B．anxiety
C．comprehension
D．consideration
