Some people viewed the findings with caution,noting that a cause-and-effect relationship between passive smoking and cancer remains ___________.一碰到这种题目我就不知道思路在哪?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 21:18:43
![Some people viewed the findings with caution,noting that a cause-and-effect relationship between passive smoking and cancer remains ___________.一碰到这种题目我就不知道思路在哪?](/uploads/image/z/11930994-18-4.jpg?t=Some+people+viewed+the+findings+with+caution%2Cnoting+that+a+cause-and-effect+relationship+between+passive+smoking+and+cancer+remains+___________.%E4%B8%80%E7%A2%B0%E5%88%B0%E8%BF%99%E7%A7%8D%E9%A2%98%E7%9B%AE%E6%88%91%E5%B0%B1%E4%B8%8D%E7%9F%A5%E9%81%93%E6%80%9D%E8%B7%AF%E5%9C%A8%E5%93%AA%3F)
Some people viewed the findings with caution,noting that a cause-and-effect relationship between passive smoking and cancer remains ___________.一碰到这种题目我就不知道思路在哪?
Some people viewed the findings with caution,noting that a cause-and-effect relationship between passive smoking and cancer remains ___________.
一碰到这种题目我就不知道思路在哪?
Some people viewed the findings with caution,noting that a cause-and-effect relationship between passive smoking and cancer remains ___________.一碰到这种题目我就不知道思路在哪?
A. 因为吸二手烟和癌症之间的因果联系还没有显示出来,所以是to be shown,
b选项都已经证实了,何必还要不定式to了?不选C的原因和不选b一样,
A
吸二手烟和癌症的因果关系有待揭示。
remain to be done 有待。。。