戈尔巴乔夫上台后,针对苏联经济面临的____ 局面,首先把____ 作为重点,但没有取得成果。20世纪80年代后期,又把改革的重点转到____ 。此后,苏联的____ 发生急剧变化,主要表现为____ ,国家权力分散。
⑴Are you going to the beach?____ A. I'm going to the shop.
⑵Where are you going?____ B. Yes, I am.
⑶Is he going to the bank?____ C. She is going to the park
⑷Where's she going? ____ D. No,he isn't.
⑸What's Jenny doing?____ E. She's thinking
通常情况下,声音在空气中传播的速度约 ____m/s.某次打雷时,看到闪电后5s才听到雷声,由此可以估算出发生雷电处离你的距离为 ____ m.