满载大型船在进行操纵转向时,一般宜:().
A.晚用舵,晚回舵,用小舵角
B.早用舵,早回舵,用大舵角
C.早用舵,晚回舵,用小舵角
D.晚用舵,早回舵,用大舵角
参考答案:B
用所给单词的适当形式填空。
1. We will ride (we) bikes to the store.
2. I need ten (gift) for my family.
3. Danny said he (want) a new car.
4. I (buy) a T-shirt last week.
5. Please (not) tell him about the party.
固体表面发生化学吸附的原因是什么?表面反应与化学吸附的关系是什么?