气候的两大基本要素,是指_____和______。
气温;降水
Mrs White showed her students some old maps____from the library.[ ]
A. to borrow
B. to be borrowed
C. borrowed
D. borrowing
颮线过境时()
A.气压骤升,气压徒降
B.气压骤降,气温徒降
C.气压骤降,气温徒升
D.气压骤升,气温徒升