大车运行机构的驱动方式,可分为集中驱动和分散驱动。
参考答案:错
读短文,判断正( )误()。
Last week we went to Beijing by air.On Monday, we were on the train. I saw many people playing cards.
On Tuesday, we went to the Summer Palace. It's very beautiful. The third day, we went to a restaurant
and had some sandwiches. My brother and I ate ice cream, too. We went to Wangfujing Street and
shopped there on Thursday. I bought a gift for my mother.
( ) 1. We went to Beijing by train.
( ) 2. The Summer Palace is very beautiful.
( ) 3. We went to a restaurant on Wednesday.
( ) 4. My brother had ice cream but I didn't.
( ) 5. We went to Wangfujing Street on Tuesday.
土鳖虫的入药部位是()
A.卵鞘
B.背甲
C.雌虫干燥体
D.内壳
E.贝壳