【简答题】请听对话,选择最佳答案 1. What's Mary's favourite subj ect? A. English. B. Chinese. C. Maths. 2. When will the woman's train leave? A. 9:15. B. 9:50. C. 10:50. 3. How is Bill now? A. He's much better now. B. He ...
【单选题】A postage stamp's value to collectors is raised if ______.
A.
there are few others like it
B.
there are no errors on the stamps
C.
a mistake is made in the ,printing
【简答题】转向轮定位具有保证直线行驶的稳定性( )自动回正等功用
【简答题】对话理解, 根据你所听到的对话及问题选择正确答案。 ( )1. A. Chinese. ( )2. A. It's noisy. ( )3. A. Beijing. ( )4. A. 8:05. ( )5. A. Five. B. Math. B. It sounds nice. B. Shanghai. B. 8:15. B. Six. C. Englis...
【单选题】A postage stamp's value to collectors is raised if______.
A.
there are few others like it
B.
there are no errors on the stamp
C.
a mistake is made in the printing
【多选题】下列化学原料药中,容易发生氧化的类型有( )。
【多选题】下列化学原料药中,容易发生氧化的类型有( )。