读一读,连线。
①How is the weather? ____ A. Yes, we can.
②How many birds are there?____ B. No, I don't.
③Can we ride bikes there?____ C. It's cloudy.
④Is it windy today? ____ D. There are four birds.
⑤Do you like the rain?____ E. No, it isn't.
金属冶炼的过程中,氢气和一氧化碳气体常用作还原剂,在加热条件下,氢气和一氧化碳气体都能从金属的氧化物中把金属还原出来.如图分别是氢气和一氧化碳还原氧化铜粉末的实验装置,据图回答问题。
____ does she____ back?