阅读理解.
The weather in differernt seasons (季节) is different.
In spring, it is often windy in March and it is always warm in April and May. It rains sometimes
and trees an
d grass turn green in May.
In summer, it's hot in the day and cool at night. It usually rains a lot in July and August. The days
are longer and the night are shorter.
The weather in autumn is very nice. It's always warm and sunny in September and October.
People like going out in this season.
The winter is always from December to February. It's very cold in winter and it snows sometimes.
根据上面内容判断正误, 正确的写T, 错误的写F.
( ) 1. The spring is from March to May.
( ) 2. It is ususlly humid in July.
( ) 3. It's very cold from December to February.
( ) 4. The weather in September is terrible.
( ) 5. The summer is very long but the winter is very short.
CO(g)＋H2(g)达到平衡的标志是( )