止回阀装在闸阀的（）_矿井泵工_全学科试题题库

当前学科：矿井泵工

题目：单选
止回阀装在闸阀的（）
答案： <查看本题扣1积分>

查看答案

答案不对？请尝试站内搜索

推荐知识点:

计算题：用2.5MHzφ20mm直探头对钢材进行超声波探伤，求此探头的近场区长度和指向角的角度。

患者，女。每于经期，小腹胀痛拒按，月经量少，色紫暗，或伴胸胁乳房胀痛。诊断为（）

治疗肝癌气滞血瘀证，应首选（）。治疗肝癌湿热瘀毒证，应首选（）。

行政机关执法时，当事人有权进行陈述和申辩。行政机关不得因当事人申辩而（）

Translate the following into Chinese. (1)Details You are requested to check the contents of the Invitation to(2)package for completeness when you receive it and then return the enclosed(3)Acknowledgment. (4)shall be submitted in accordance with the Instructions to(5)and Form of(6)．Any deviation from the requirements of these instructions may render your(7)invalid. Your(8)must be received no later than 12: 00 o'clock on Friday, 3rd July, 2009(closing date)at the office of the Purchaser in Shenzhen, People's Republic of China. (9)shall be forwarded by courier service or delivered safe-hand, sealed and clearly addressed and marked on the outside in accordance with the Instructions to(10). Please note that uninvited visits to our offices to discuss the Invitation to(11)are not acceptable and that all contact shall be in writing(by letter or fax)as set out in the Instructions to(12). The(13)shall consider this Letter of Invitation and the enclosed Invitation to(14)documents to be confidential, and the contents shall not be divulged to any person or persons not directly concerned with the preparation of the(15). This Invitation to(16)is subject to your signing and returning to the Purchaser the(17)Acknowledgment contained within Section A.

密接式车钩连接面的纵向间隙一般都小于（）mm。

关于广义的产业结构，下面表述错误的是（）.

教材编写在内容上要做到（）

建筑石膏凝结硬化时，最主要的特点是（）。

鲸鱼背上的孔是：（）