It can be inferred from the last paragraph that ______
A. top performers used to cling to their posts.
B. loyalty of top performers is getting out-dated.
C. top performers care more about reputations.
D. it's safer to stick to the traditional rules.
It is suggested in Paragraph 3 that childless folks ______.
A. are constantly exposed to criticism.
B. are largely ignored by the media.
C. fail to fulfill their social responsibilities.
D. are less likely to be satisfied with their lif
The design of the orbiter indicates ______
A. NASA's determination to continue space exploration.
B. NASA's disadvantage in space technology.
C. the great pressure from Congress on NASA.
D. a heavy defeat for NAS
Jennifer Senior suggests in her article that raising a child can bring ______.
A. temporary delight
B. enjoyment in progress
C. happiness in retrospect
D. lasting reward
微信支付 
支付宝支付