皮皮学，免费搜题
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【多选题】
关于反应,以下操作正确的是A.
试管清洁干净
B.
托伦试剂配现用，不可久置
C.
使用热水浴加热，不断振荡试管
D.
实验完毕后，用浓硝酸溶解反应生成的，洗净试管
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】S1:A vessel is crossing from starboard side.S2:We need not give way.Q:What is the coming vessel doing?A. The vessel is crossing from port side. B. The vessel is crossing from starboard side. C. The ve...
【简答题】某化学反应在恒压、绝热和只做体积功的条件下进行,系统的温度由 T 1 升高至 T 2 ,则此过程的焓变 ____0 ;如果这一反应在恒温 T 1 、恒压和只做体积功的条件下进行,则其焓变 _____0 。 (填入>,<或=)< /div>
【简答题】S1:Stand clear of the vessel and report.S2:No.1 lifeboat standing clear of the vessel.Q:What's the vessel most probably doing?A. Searching for a person overboard. B. Fighting flooding. C. Abandoning v...
【单选题】[7-8]Ifa vessel’s full displacement is 18,880 tons,light ship displacement is 5,500 tons,deadweight is 13,880 tons,stores 1,800 tons
A.
18,880 tons
B.
18,000 tons
C.
12,000 tons
D.
9,380 tons
【单选题】A flooded lifeboat on board a vessel would adversely affect the vessel’s stability by ______.
A.
increasing the righting moment
B.
decreasing the vessel’s displacement
C.
increasing the reserve buoyancy
D.
shifting the CG (center of gravity) off center
【单选题】下列程序段的执行结果是( )。 a=75 Ifa＞60 Then i=1 Ifa＞70 Then i=2 Ifa＞80 Then i=3 Ifa＜90 Then i=4 Print'i='i
A.
i=1
B.
i=2
C.
i=3
D.
i=4
相关题目：
【简答题】某化学反应在恒压、绝热和只做体积功的条件下进行,系统的温度由 T 1 升高至 T 2 ,则此过程的焓变 ____0 ;如果这一反应在恒温 T 1 、恒压和只做体积功的条件下进行,则其焓变 _____0 。 (填入>,<或=)< /div>