問題詳情
【題組】33.Why does the author state in line 10 that observations are taken "just once every twelve hours?"
(A)To indicate that the observations are timely
(B)To show why the observations are on limited value
(C)To compare data from balloons and computers
(D)To give an example of international cooperation
參考答案
答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)