皮皮学,免费搜题
登录
搜题
【单选题】
有截止阀选用特点的叙述中,说法正确的是( )。
A.
结构比闸阀简单,制造、维修方便,也可以调节流量,应用广泛
B.
密封性能好,流体阻力小,开启、关闭力较小,也有一定调节流量的性能
C.
用于清洁介质,对于带固体颗粒和粘性较大的介质不适用
D.
适用于蒸汽、空气和清洁水等清洁介质
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】— will they play? —They will play football.
A.
What subject
B.
What sport
C.
What food
D.
What language
【单选题】— do you speak? —I speak English. [     ]
A.
What
B.
What color
C.
What time
D.
What language
【简答题】In the 1950s, blue jeans became a statement by those who wish to boycott the values of a consumer-based society that was concerned only with acquisition. Blue-jeans-wearing rebels of popular movies we...
【单选题】It is the general manager who makes the ______ decisions in busine
A.
beginning
B.
finishing
C.
first
D.
final
【单选题】Bob asked me_ .
A.
what was she doing
B.
what is she doing
C.
what she was doing
D.
what she is doing
【单选题】The low operating costs of the foreign company will ______ the high labor costs the business pays in its own country.
A.
offend
B.
obstruct
C.
oblige
D.
offset
【单选题】马列主义关于无产阶级政党学说的核心内容是( )
A.
党组织原则问题
B.
党的作风建设问题
C.
党的领导地位和作用问题
D.
党的思想建设问题
【简答题】主义关于无产阶级政党学说的核心内容是( )。
【单选题】A sequence was created with the DDL statement shown below:CREATE SEQUENCE my_seq START WITH 5 INCREMENT BY 5 CACHE 5 User1 successfully executes the following statements in Connection1: VALUES NEXT VA...
A.
20
B.
25
C.
50
D.
55
【单选题】在HTML文档中创建了一个标记sample,________可以创建指向标记sample的超链接。
A.
<a href="sample"></a>
B.
<a href="#sample"></a>
C.
<a href="mailto sample"></a>
D.
<a href="www.sample.htm"></a>
相关题目: