市民应从哪些方面树立卫生意识、养成卫生习惯?
参考答案:
1.自觉维护城市环境卫生
2.搞好工作场所的卫生
3.保持家庭环境卫生
4.注意个人卫生
--Shall we discuss the problem at the meeting today?
---We’d better not. ,the problem isn’t so burning. What’s more, the manager won’t be back until tomorrow.
A.Begun with
B.Beginning with
C.To begin with
D.Being begin with
松下M7型摄像机的随机蓄电池的容量是“2 Ah”(“2 Ah”的含义是:该蓄电池若以2 A的电流放电,可放电1 h.),输出电压为12 V.这样的蓄电池充好电后,能释放的最大电能为______J.