采用机车运输时,正常运行时,机车必须在列车()端。
A、前
B、后
C、左侧
D、右侧
参考答案:A
This is the room of Li Lei.It’s a 1 (nice/well) room.You can see a bed,two 2 (tables/table), a chair and a soccer ball on the floor.What can you see 3____ (on/in)the wall? You can see some 4 (picture/pictures).Where’s 5______ (a/the)light(灯)? It’s on 6 (a/the/an) table.Some books are on this table 7_____(to/too).Where 8 (are/is) his pencil case and pens? They are on the other(另一个)table.You can see a clock 9 (under/on)it.Under the chair is 10 (his/her)soccer ball.
中新网2011年1月14日电 入冬以来,北京持续无雪,流感病人逐渐增多,甲型H1N1流感患者的比例日益增加,占到流感人群的20%多,甲流病毒未发生变异。甲型HlN1流感的病毒由____ 外壳和内部的 组成。