皮皮学,免费搜题
登录
搜题
【单选题】
离心泵的调节阀 。
A.
安装在出口管路上
B.
安装在进口管路上
C.
安装在进口管路或出口管路上均可
D.
安装在旁路上
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】中共“八大”和中共十一届三中全会 (1)都体现了实事求是的精神 (2)都明确了经济建设这个中心任务 (3)都提出要改革开放 (4)有一定的继承性
A.
(1)(2)(3)
B.
(1)(2)(4)
C.
(1)(3)(4)
D.
(2)(3)(4)
【单选题】Where was Darcy when his father died?
A.
Darcy was in the army that day
B.
Daecy was with his father that day alone
C.
Darcy was with his father that day together with Wickham
D.
Darcy did not know his father died that day
【单选题】When Darcy proposes for the first time, Elizabeth
A.
Tells him that she is engaged to Wickham
B.
Asks him for more time
C.
Turns him down
D.
Faints
【单选题】下面哪种染色剂为红色( )
A.
2%硝酸银溶液
B.
0.5%的中性品红
C.
煤焦油的酒精溶液
D.
3%~5%的苦味酸溶液
E.
以上都不是
【判断题】在相同色谱条件下,相同浓度的两个不同组分出的峰面积一定相同。
A.
正确
B.
错误
【单选题】When Darcy propose for the first time, Miss Elizabeth Bennet ______________.
A.
tells him that she is engaged to Wickham
B.
asks him for more time
C.
turns him down
D.
Faints
【简答题】某同学设计了下列实验,通过测定乙烯和CO 2 的产生量,探究“25℃室温条件下,在贮藏、保鲜过程中,乙烯合成抑制剂对毛叶枣果实的影响”。请将实验步骤补充完整并回答问题: (1)材料和器材 刚采摘的成熟度相近的毛叶枣若干,密闭容器,乙烯合成抑制剂,气相色谱仪(用于测定乙烯浓度),远红外CO 2 分析仪。 (2)方法和步骤在25℃室温条件下: ①.挑选足量的无破损、形状、大小、外观颜色相对一致的毛叶枣...
【单选题】下面哪种染色剂为红色( )。
A.
3-5%的苦味酸溶液
B.
0.5%的品红溶液
C.
2%硝酸银溶液
D.
煤焦油酒精溶液
【单选题】When Darcy first propose to Elizabeth Bennet, he spends most of his proposal dwelling on ____________.
A.
Her beauty
B.
How socially unsuitable a match she is for him
C.
How much he adores her family
D.
How much money he will lavish on her
【单选题】关于测绘成果的检查验收,以下说法错误的为( )
A.
测绘单位对测绘成果质量实行过程检查和最终检查
B.
过程检查和最终检查由测绘单位的质量管理机构负责实施
C.
验收工作由委托单位或由该单位委托具有检验资格的检验机构验收
D.
检查中出现的分歧,由测绘单位的总工程师裁定,验收中的,由测绘单位上级质量管理机构裁定,委托验收的报省级测绘行政主管部门的质量管理机构裁定
相关题目: