如图所示,装有水的容器静止在斜面上,其底部a、b、c三处受到水的压强分别为pa、pb、pc,则以下判断正确的是A. pa=pb=pc B. pa<pb<pc C. pa>pb>pc D. pa>pb=pc 答案:【答案】C【解析】如图,a、b、c三点所处的深度,ha >hb >hc ,因为p=ρ液 gh,在同一种液体中、密度相同,所以,pa >pb >pc,故选C
第Ⅱ卷(共35分)
第四部分写作(共三节,满分35分)
第一节单词拼写(共5小题,每题1分,分)
根据所给的第一字母或中文拼写单词。
76. She was a _________ (安慰) to her old father.
77. Smith is very ________(吝啬的). He never helps the poor,
though he is rich.
78. New Zealand has a p________ of about
3.8 million people.
79. We’ve got to be _______(实际的) and buy only what we can
afford.
80. China’s role in keeping the world’s peace
is highly v______.