A：凝固点低
B：凝固点高
C：比热容大
D：比热容小
2015年，我国无人驾驶汽车红旗HQ3将再次进行长途测试，之前的测试中，该车的平均车速约90km/h，合 ____ m/s，车载高精度GPS系统可对车实时定位，该系统定位时利用了____ （选填“电磁波”或“超声波”），自动行驶过程中，路边树木相对该车是____ 的．
Situations
Differences
Britons (英国人)
Americans
When being knocked into
They will say “sorry” before the other does.
They will ____ the person and expect him to say “sorry”.
When going out for dinner
They will ____ when going out for dinner.
They may wear a normal shirt to go to a good____.
When taking a taxi
They will give an address to the taxi driver and then ____.
They will ____ the taxi driver all the time.
