划线字解释不正确的一项是(3分)
A.温故而知新(复习)
B.鲜为人知(少)
C.有朋自远方来(自己)
D.快走踏清秋(奔驰,跑)
答案:C
C中应是:有朋自远方来(从)
神经纤维髓鞘化完成的年龄为()
A.2岁
B.3岁
C.4岁
D.5岁
E.6岁
As a vessel sinks to a depth of 15 feet,the hydrostatic trip releases the liferaft container from its cradle by().
A.breaking the weak link
B.releasing the tie-down strap
C.pulling the operating cord
D.releasing the CO2 canister