皮皮学，免费搜题
登录
搜题
【单选题】
下列描述安全阀工作原理的说法错误的是（）。A.
安全阀通常受弹簧作用或导阀控制
B.
安全阀有杠杆式和弹簧式等类型
C.
当入口处静压超过外界压力时，阀瓣上升以泄放被保护系统的超压
D.
当压力将至压力时，则自动关闭
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】根据下列文章,请回答 41～45 题。 New Foods and the New World In the last 500 years，nothing about people——not their clothes，ideas。or languages——has changed as much as what they eat．The original chocolate drink was ...
A.
Food．
B.
Clothing．
C.
Ideology．
D.
Language．
【单选题】根据下列文章,请回答 36～40 题。 New Foods and the New World In the last 500 years, nothing about people -- not their clothes, ideas, or languages-- has changed as much as what they eat. The original chocolate dri...
A.
Food.
B.
Clothing.
C.
Ideology.
D.
Language.
【单选题】根据下列文章,请回答 41～45 题。 New Foods and the New World In the last 500 years, nothing about people -- not their clothes, ideas, or languages－－ has changed as much as what they eat, The original chocolate dri...
A.
Food.
B.
Clothing.
C.
Ideology.
D.
Language.
【单选题】第 27 题(本题:1分) 若有定义:char *ps[]={"aa","bb","cc","dd"};,则以下叙述正确的是
A.
ps[0]是字符串"aa"
B.
*ps[0]是字符串"aa"的首地址
C.
ps[0]是字符串"aa"的首地址
D.
*ps[0]是字符串"aa"
相关题目：
参考解析：
知识点：
题目纠错 0
发布
