在“她喜欢金首饰”这句话中，“金”的词性是（）。
参考答案：区别词
It is reported that the United States uses _______ energy as the whole of Europe. [ ]
A. as twice
B. twice much
C. as twice much
D. twice as much
在开始操作套管钳时，为什么一定要注意钳子周围不能站其他人？
