皮皮学，免费搜题
登录
搜题
【单选题】
19 世纪 50 年代,淮河自洪泽湖向长江入海;黄河结束夺淮历史,改从山东入海。 1968 年,南京长江大桥建成通车;自 1999 年江苏境内又陆续建成了多座长江大桥。江苏习惯上以长江为界,分为苏南和苏北两部分。目前在洪泽湖以东地区,秦岭—淮河线( )A.
无划分指标依据
B.
与自然河道一致
C.
无对应的自然标志
D.
两侧地理差异显著
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
【简答题】A glass electrode-SCE pair is calibrated at 25℃ with a pH 4.01 standard buffer, the measured voltage being 0.814V. What voltage would be measured in a 1.00×10 -3 mol/Lacetic acid solution?Assume =[H +...
【简答题】给下列词语中加点字选择正确的读音(用123这样的数字按顺序写出答案即可) 白 昼 ∙ (1zòu 2zhòu) 供 事(3gōng 4gòng) 傍 身(5bàng 6páng) 耕 耘 ∙ (7yún 8yóng) 涟 漪 ∙ (9yī 10yí) 稚 子(11zì 12zhì) 说明123456789
【单选题】They were ____ by grief when their baby died.
A.
overwhelmed
B.
attacked
C.
embarrassed
D.
misled
【简答题】The modern pH electrode is an example of a ( ) because both the indicator electrode and reference electrode are included with the same device.
【单选题】The potential difference on the pH glass electrode is generated from the difference of ( ).
A.
the features of the inner and outer glass membrane
B.
the concentrations of H + in the inner and outer solution
C.
the activities of H + in the inner and outer solution
D.
the types of the inner and outer reference electrode
相关题目：
参考解析：
知识点：
题目纠错 0
发布
