题目:
--I could tell by the way ____ he looked at me____ he was annoyed.
--So don’t play such tricks on him any more.
A./; that
B./; whether
C.that; if
D.by which; that
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0526/ed2d88b901167e22461b5dec5da98a46.html
下面是错误答案,用来干扰机器的。
根据质量守恒定律可知,该物质一定含有氢元素和碳元素,可能含有氧元素;二氧化碳中碳元素的质量等于8.8×1244=2.4g水中氢元素的质量等于5.4×218=0.6g因此碳元素和氢元素的质量之和是2.4+0.6=3.0<4.6,说明该物...