創建自己的小題庫
搜索
【多選題】
已知雨滴下落過程中受到的空氣阻力與雨滴下落速度的平方成正比，用公式表示為f=kv2。假設雨滴從足夠高處由靜止豎直落下，則關于雨滴在空中的受力和運動情況，下列說法正確的是
A.
雨滴受到的阻力逐漸變小直至為零
B.
雨滴受到的阻力逐漸變大直至不變
C.
雨滴受到的合力逐漸變小直至為零，速度逐漸變小直至為零
D.
雨滴受到的合力逐漸變小直至為零，速度逐漸變大直至不變
手機使用
分享
復制鏈接
新浪微博
分享QQ
微信掃一掃微信內點擊右上角“…”即可分享
反饋
收藏
舉報參考答案：
舉一反三
【單選題】Before each lesson finishes, the student has to_______________________ .
A.
get up and take breakfast
B.
be woken up by a loud voice
C.
listen to the lesson again in sleep
D.
review (復習) the lesson by himself
【單選題】What do we know about the flat?
A.
It has a big garden.
B.
It has a small garage.
C.
It has two double beds.
【單選題】In the experiment, lessons were given___________________________ .
A.
in the night time
B.
after lullabies were broadcast
C.
while the student was awake
D.
all through the twelve hours
【單選題】The purpose of the passage is to tell us that ________.
A.
man are smarter then women
B.
man are more stupid the women
C.
a new fact about the IQ of men and women has been found
D.
men are more likely to receive first class university degrees
相關題目：
【單選題】Before each lesson finishes, the student has to_______________________ .
A.
get up and take breakfast
B.
be woken up by a loud voice
C.
listen to the lesson again in sleep
D.
review (復習) the lesson by himself
【單選題】What do we know about the flat?
A.
It has a big garden.
B.
It has a small garage.
C.
It has two double beds.
【單選題】In the experiment, lessons were given___________________________ .
A.
in the night time
B.
after lullabies were broadcast
C.
while the student was awake
D.
all through the twelve hours
【單選題】The purpose of the passage is to tell us that ________.
A.
man are smarter then women
B.
man are more stupid the women
C.
a new fact about the IQ of men and women has been found
D.
men are more likely to receive first class university degrees
參考解析：
AI解析
重新生成
【冠】字開頭的成語_成語_刷刷題劍閣銘原文、翻譯及賞析、拼音版及朗讀_張載_刷刷題寫景相關的古詩詞_刷刷題豪放相關的古詩詞_刷刷題部首是【面】的字_字_刷刷題讀音是【feng】的字_字_刷刷題包含【沃】字的成語_成語_刷刷題部首是【靣】的字_字_刷刷題瓥的拼音_瓥組詞_怎么讀_什么意思_字典_刷刷題浮家泛宅的意思_拼音_怎么讀_成語不相關的古詩詞_刷刷題劍閣銘原文、翻譯及賞析、拼音版及朗讀_張載_刷刷題讀音是【feng】的字_字_刷刷題王世貞原文、翻譯及賞析、拼音版及朗讀_王世貞_刷刷題包含【沃】字的成語_成語_刷刷題【軍】字開頭的成語_成語_刷刷題王世貞原文、翻譯及賞析、拼音版及朗讀_王世貞_刷刷題董將簡介_相關詩詞_刷刷題豪放相關的古詩詞_刷刷題包含【沃】字的成語_成語_刷刷題
題目糾錯 0
發布
