问题
选择题
We all know that, , the situation will get worse. [ ]
A. not if dealt carefully with
B. if not carefully dealt with
C. if dealt not carefully with
D. not if carefully dealt with
答案
答案:B
We all know that, , the situation will get worse. [ ]
A. not if dealt carefully with
B. if not carefully dealt with
C. if dealt not carefully with
D. not if carefully dealt with
答案:B
一些食物的近似pH如下表:
食物 | 苹果 | 葡萄 | 牛奶 | 玉米粥 |
pH | 2.9~3.3 | 3.5~4.5 | 6.3~6.6 | 7.2~8.0 |
A.苹果
B.葡萄
C.牛奶
D.玉米粥