涡轮螺旋桨和涡轮风扇、涡轮喷气发动机比较，随飞机速度增加，推力（）.
A.上下波动
B.下降的慢
C.下降的快
D.上升的快
参考答案：C
The factory which produced fake wine in our city, _______ was shown in the news report, has been closed by the government.
A．that
B．it
C．what
D．as
架空输电线路主要由导线、避雷线、杆塔、基础（及其附件）、接地装置、绝缘子和金具组成
