The rapid development of communications technology is transforming the ________ in
A. route
B. transmission
C. vision
D. manner
He is assigned to oversee the production of the assembly lines.
A. supervise B) watch C)suspect D)predict
A team of scientists has
A. erected a pressure-releasing pipe in the lake
B. identified the gases at the bottom of the lake
C. built a beautiful fountain near the lakes
D. removed all dangerous gases from the lakes
微信支付 
支付宝支付