蘑菇和霉菌的生殖方式都是（）。
A.孢子生殖
B.营养繁殖
C.分裂生殖
D.出芽生殖
参考答案：A
6. The American journalist as well as several other foreigners ______ with the August Medal for helping the Chinese people ______independence from the Japanese
A．were awarded; get
B．was rewarded; gain
C．was awarded; achieve
D．were rewarded; gain
四冲程内燃机在一个工作循环中 [ ]
A．活塞往复运动2次，曲轴转动2周，完成四个冲程，对外做1次功
B．活塞往复运动2次，曲轴转动4周，完成四个冲程，对外做1次功
C．活塞往复运动4次，曲轴转动2周，完成四个冲程，对外做2次功
D．活塞往复运动2次，曲轴转动4周，完成四个冲程，对外做2次功
