非补偿
参考答案:
指盆地基盘沉降速率大于沉积物堆积速率,使盆地水体加深。
流感的主要传播途径是
A.食物、饮水
B.输血
C.空气飞沫和直接接触
D.媒介昆虫
E.间接接触
Professor Johnson’s retirement () from next January.
A. carries into effect
B. takes effect
C. has effect
D. puts into effect