这里为乘坐长途飞机的人们准备了一套保持(keep)舒服的体操运动,可以使乘客在抵达目的地时精力饱满、轻松自如.(汉译英)
Large cities such as New York, London and Bombay (to name a few) can barely cope with the large numbers of people living on the streets.(英译汉)
若F&39;(x)=f(x),x∈I,则F&39;(x)是f(x)在区间I上的()
A. 不定积分
B. 一个原函数
C. 导函数
D. 反函数
This means that that it is a good idea to try to learn the customs of the place you