弹簧式蓄能器产生的压力取决于弹簧的刚度和压缩量。

题型:判断题

问题:

弹簧式蓄能器产生的压力取决于弹簧的刚度和压缩量。

考点:机械维修工考试机械维修工考试题库
题型:判断题

阅读理解。

     Lucy, Mary, Tom and Tony are good friends. They are in Class 4, Grade 1. Tom's favourite subject

is maths. Lucy's favourite subject is English. Mary's favourite subject is Chinese. Tony likes P.E. best.

But they don't like biology. They think biology is boring. There are many clubs in their school. Lucy can

sing well, so she joins(参加) the music club. Mary likes swimming, so she joins the swimming club. Tom

likes playing chess, so he joins the chess club. Tony likes drawing, so he joins the art club.

根据短文内容判断对错正确的写(T),错误的写(F)。

( )1. Tony's favourite subject is maths.

( )2. Lucy sings well.

(     )3. Tom joins the swimming club.

(     )4. Mary likes biology.

( )5. They are good friends.

题型:判断题

对流层的气温随高度的上升而下降,主要原因是对流层大气的直接热源是地面辐射。

题型:判断题

女性,17岁。心慌多汗半年。近1个月出现多饮、多尿就诊。体检:明显消瘦,双眼略突出,甲状腺Ⅱ度大,双上极可闻及血管杂音。血FT333.5pmol/L,FT440pmol/L,TSH0.01mU/L(0.01μU/ml)

关于对本例患者甲状腺功能亢进的治疗,选择以下哪种方案最为恰当()

A.抗甲状腺药物治疗

B.手术治疗

C.131I治疗

D.小剂量抗甲状腺药物治疗

E.免疫抑制剂治疗

题型:判断题

Ⅱ期临床试验是()

A.初步的临床药理学及人体安全性评价试验

B.治疗作用初步评价阶段

C.治疗作用确证阶段

D.新药上市后应用研究阶段

E.为制定给药方案提供依据的阶段

题型:判断题

自动喷水灭火系统报警阀组垂直安装在配水干管上,水源控制阀、报警阀组水流标识与系统水流方向一致。报警阀组的安装顺序为()。

A.水源控制阀—报警阀—报警阀辅助管道

B.水源控制阀—报警阀辅助管道—报警阀

C.报警阀—水源控制阀—报警阀辅助管道

D.报警阀—报警阀辅助管道—水源控制阀

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