油压机是借助油作为()的介质,通过()介质进入柱塞缸,推动柱塞加压工作。
参考答案:传递压力,高压液体
Peter and I are good friends. Peter is an American boy. I am a Japanese girl. He is thirteen. I am twelve. We are in the same class,Class Two.
Peter has a nice clock. He likes it very much. He puts it on his desk. Every morning it wakes him up(叫醒他). I have a new watch. It looks beautiful. I wear(戴)it every day. It tells(告知) me the time.
小题1:Peter and I are ________.
小题1:
A.sisters
B.teachers
C.friends
D.brothers小题2:Peter is ________.
小题2:
A.an English boy
B.a Japanese girl
C.an American boy
D.an English girl小题3:I have ________.
小题3:
A.a purple clock
B.an old watch
C.a new watch
D.a nice clock小题4:Peter ________.
小题4:
A.wears his clock every day
B.puts his clock on his desk
C.wears his new watch every day
D.likes his new watch very much小题5:Peter and I are ________.
小题5:
A.in different classes
B.in the same row
C.in Class Two
D.in America
患者女性,54岁。慢性肾炎病史20余年,头痛、食欲减退、恶心1个月。查体:血压190/110mmHg,重度贫血貌,双下肺可闻及湿啰音,心界向左下扩大,主动脉瓣区可闻及2/6级收缩期吹风样杂音,腹部移动性浊音阳性,双下肢水肿。初步诊断()
A.急进性肾炎并急性肾衰竭
B.慢性肾炎并急性肾功能不全
C.高血压肾病并急性肾功能不全
D.慢性肾炎并慢性肾衰竭
E.高血压肾病并慢性肾衰竭