When a machine is（）, suitable material must be chosen for its parts.

单项选择题The three foreigners was pushed out of the way because（）

A．they did not queue for the bus
B．they were foreigners
C．the people were unfriendly
D．there were not any reasons

单项选择题People who want to be successful depend too much On the comments of others in order to feel good about themselves（）

A．人们想获得成功，为了让自己感觉好就非常依赖他人的议论。
B．想获得成功的人过分依赖别人的评价来使自己感觉良好。
C．想获得成功的人通常在意别人的评价，为了让自己感觉好。
D．成功者因为别人的议论而自我感觉舒服。