读世界海陆分布图，回答下列问题．（1）大洲： A．______， C．______爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题问答题

读世界海陆分布图，回答下列问题．

（1）大洲：A．______，C．______，E．______，F．______．

（2）大洋：①．______，②．______，③．______，④．______．

（3）被赤道横穿大陆的大洲有______，全在南半球的大洲主要是______（填字母）．

答案

读图可知，（1）图中大洲：A亚洲，C北美洲，E大洋洲，F南极洲．（2）大洋：①太平洋，②大西洋，③印度洋，④北冰洋．（3）被赤道横穿大陆的大洲有DB，全在南半球的大洲主要是F．根据题意．

故答案为：（1）亚洲；北美洲；大洋洲；南极洲；（2）太平洋；大西洋；印度洋；北冰洋；（3）DB；F．

完形填空

In the morning, Slim got up and prepared breakfast for his wife as usual. Nicole, his wife was listening to music in the bedroom. __小题1:_, he felt that his body was shaking. Slim had the __小题2:__ response that there was an earthquake! He __小题3:__ quickly: “Dear, earthquake! Go to the toilet！” Nicole heard the shouting, 小题4: the first aid box quickly and ran into the toilet. The house was 小题5: even more dramatically (剧烈地)．
Bathroom was the next door to the kitchen. Slim picked up a kitchen __小题6:__ and two pieces of bread outside the kitchen. Slim tried to __小题7:__ along the wall to help Nicole.__小题8:__, it got dark suddenly with an explosion. The house __小题9:_____down and many things fell from above. Nicole was quickly buried in 小题10: .She felt breathing very difficult. She tried to stand up, but 小题11:  .
A few minutes later, the land was __小题12:.Nicole heard the sound of short __小题13:_ and thought it was Slim! She shouted to him but no __小题14:__！ He probably fainted. Nicole kept saying his name and she finally heard a response, two people encouraged and __小题15:__ each other. They knew that there must be a way to   小题16: .
Slim found that they were close and were   小题17:  by the fallen stones and some powder. He started to dig with the kitchen knife. He felt __小题18:__ from his fingers. Finally, he removed the last piece of larger stones. Slim touched Nicole's one hand, then dug the __小题19:__ stones of her body. Finally, Nicole had a __小题20:__ breathing slowly. Two people sat on the ground and hugged together.

C．Unfortunately

C．impractical

B．communicate

C．surrounding

问答题

从静止开始做匀加速直线运动的汽车，经过t=10s，发生位移x=30m．已知汽车的质量m=4×10³kg，牵引力F=5.2×10³N．求：

（1）汽车运动的加速度大小；

（2）运动过程中汽车所受的阻力大小．