问题
单项选择题
多数北方落叶果树的需水临界期是（）
A、萌芽期
B、新梢生长和动果期
C、采果前后
答案
参考答案：B
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多数北方落叶果树的需水临界期是（）
A、萌芽期
B、新梢生长和动果期
C、采果前后
参考答案：B
| 综合填空。选择方框中所给词的正确形式填空，每词限用一次。 | |
Life today has 2 new problems. One of the biggest problems is pollution. Water pollution has made our rivers and lakes dirty. It 3 our fish and affects our drinking water. Noise pollution makes 4 talk louder and louder. Air pollution is the most serious kind of pollution. It affects every living thing in the world. We need to do many things to fight 5 . We can put waste things in the dustbin and not throw it 6 the ground. We can go to work by bus or with our friends in the same car. 7 there are fewer people driving, there will be 8 pollution. Laws are not enough. Every person must help to fight pollution. |