--Speaker A: “May I come in?”--Speaker B: “___________”
A.Yes, you may.
B.Sure
C.Come in, please.
查看答案
--Speaker A: “Your English is very good.” --Speaker B: “____________”
A.No, it isn’t.
B.Thank you.
C.No, my English is not good.
Speaker A: What are you doing now?
A. eaker B:
B.I often watch TV
C.I like basketball.
D.I am running in the park.
遥感的优点有( )。①用途广 ②手段多,获得的信息量大 ③不受地面条件限制 ④成本低,效益大
A. ①②
B. ①②③
C. ①②④
D. ①②③④
遥感是( )。
A. 人向远处看,感知遥远的事物
B. 人从高处往低处看,感知地面事物
C. 在空中对遥远地物进行感知
D. 记录地面物体的图像