【单选题】Questions 20 to 22 are based on the passage you have just heard.
A.
They may have to continue to work in old age.
B.
They may regret the time they wasted.
C.
They may have nobody to depend on in the future.
D.
They may have fewer job opportunities.
【单选题】在指定的叶片径向位置(通常为100%叶片半径处)叶片弦线与风轮旋转面间的夹角叫()
【单选题】You may depend _____him. He is an honest man.
【单选题】石板墙面弹线应先量出中心线、测设标准水平线、()、量弹石板材各分块线。
【判断题】在韩国战争电影中,女性常被塑造成慰安妇,隐喻了韩国那段受创的历史。()
【单选题】在开式齿轮传动的设计中,通常( )。
C.
按弯曲疲劳强度设计,增大模数5%~15%,再验算接触疲劳强度