【简答题】若不使用MCS-51单片机的片内程序存储器,引脚EA必须( )。
【简答题】请听一段对话,完成第1至第2小题。 1. What is the weather like? A. It's rainy. B. It's cloudy. C. It is windy. 2. How will the woman go to work? A. By taxi B. By bus. C. By bike
【简答题】В 1867г. Россия продала США____.
【单选题】В 1867г. Россия продала США____.
B.
Аляску и Алеутские острова
C.
Аляску и Курильские острова
【单选题】从火花塞开始打火到活塞到达压缩上止点,曲轴转过的角度叫( )。
【简答题】请听一段对话,完成第1至第2小题 1. When does the man go to the gym every day? A. After breakfast. B. After lunch. C. After dinner. 2. What's the man's job? A. A reporter. B. An actor. C. A doctor.