【简答题】一个人从某地向东走了 100m ,反回头又向西走了 80m 。从出发点算起,他的位移大小是 m,位移的方向 ,他的路程是 。 prefix="o" ns="urn:schemas-microsoft-com:office:office" 2 、加速度是 量。在直线运动中,如果速度增加,则加速度是 值,表示其方向与运动方向相同;如果速度减少,则加速度是 值,表示其方向与运动方向 。 ?xml:nam...
【单选题】对购物环境适应能力强,在购物中观察敏锐、反应敏捷,易与营业员沟通的消费者气质类型属于( )
【单选题】For many seniors in some universities, the final year can be an unpleasant experience, _______ that ends the campus romance.
【单选题】In a history class that consisted of 30 students, the number of seniors was 3 more than twice the number of juniors, and 3/10 of the students were neither juniors nor seniors. Column A Column B The nu...
A.
if the quantity in Column A is greater
B.
if the quantity in Column B is greater
C.
if the two quantity are equal
D.
if the relationship cannot be determined from the information given
【单选题】What do we learn about the seniors in the Brookdale community?
A.
Most of them are interested in using the Sentab.
B.
They are quite at ease with high-tech products.
C.
They have much in common with seniors elsewhere.
D.
Most of them enjoy a longer life than average people.