81式自动步枪自动方式采用(),枪机回转式闭锁,可实施单、连发射击。
参考答案:导气式
—Did you enjoy the movie?
—No, it was _____.
A.very boring
B.very bored
C.much boring
D.much bored
—What's red and white?
—It's ____.[ ]
A. orange
B. grey
C. green
D. pink