车辆在高速公路以每小时100公里的速度行驶时,距同车道前车100米以上为安全距离。
参考答案:对
补全对话,每空一词。
1. A: ______this a pen?
B: ______, it isn't. ______a pencil.
2. A: ______is this in English?
B: It's ______ruler.
A: What ______is it?
B : It's white.
3. A: Excuse me, is this______backpack?
B: Yes______ ______.
4. A: What's this______English?
B: It's a dictionary.
A: ______do you spell it?
B: D -I-C -T-I-O -N -A -R -Y.
我国最大的渔场——舟山渔场在[ ]
A.渤海
B.黄海
C.南海
D.东海