网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

Usually John would be late for meetings.But this time, ________ to my surprise, he arrived on time.

A.little

B.much

C.ever

D.even


参考答案

更多 “ Usually John would be late for meetings.But this time, ________ to my surprise, he arrived on time.A.littleB.muchC.everD.even ” 相关考题
考题 确定某种金属离子被滴定的最小pH值(配位滴定中,允许相对误差为±0.1%),一般根据以下哪项计算() A、lgcMKMY≥5,lgαY(H)=lgKMY–lgK’MYB、lgcMK’MY≥6,lgαY(H)=lgKMY–lgK’MYC、lgcMKMY≥8,lgαY(H)=lgK’MY–lgKMYD、lgcMK’MY≥6,lgαY(H)=lgK’MY–lgKMY;

考题 I was_____ my _____to school when I saw the accident.A.on,wayB.in,wayC.on,time

考题 下列程序的输出结果是【 】。 includeclass MyClass{public: int number; void set(in 下列程序的输出结果是【 】。include<iostream. h>class MyClass{public:int number;void set(int i);};int number=3;void MyClass: :set (int i){number=i;}void main( ){MyClass my1;int number=10;my1.set(5),cout<<my1, number<<',';my1.set(number);cout<<my1.number<<',';my1.set(: :number);cout<<my1.number<<'.';}

考题 下列值不为true的表达式有( )。A、"john"=="john"B、"john".equals("john")C、"john"="john"D、"john".equals(newString("john"))

考题 The Russians sent up the first sputnik and caught the other nuclear powers( )surprise. by

考题 下面说法正确的是A.pH值越低,则αY(H)值越高,MY配合物越稳定B.pH值越低,则αY(H)值越高,MY配合物越不稳定C.pH值越高,则αY(H)值越低,MY配合物越不稳定D.pH值越低,则αY(H)值越低,MY配合物越稳定

考题 用EDTA标准滴定溶液滴定金属离子M,若要求相对误差小于0.1%,则要求()。A.CM·K'MY≥106B.CM·K'MY≤106C.K'MY≥106D.K'MY·αY(H)≥106

考题 用EDTA滴定金属离子M,为满足滴定要求,(误差≤0.2%)则lgαY(H)应满足的关系式是:A.lgαY(H)≥lgK(MY) +8B.lgαY(H)≤K(MY’)-9C.lgαY(H)≥lgK (MY)-8D.lgαY(H)≤ lgK(MY) -8

考题 考虑EDTA 的酸效应与金属离子的配位效应时,配合物的条件稳定常数的正确描述有A.lg K'f (MY) = lg Kf (MY)B.lg K'f (MY) = lg Kf (MY)-lg αY(H)-lg αM(L)C.酸度越高,其lg K'f (MY) 值越大D.酸度越高,其lg K'f (MY) 值越小

考题 用EDTA标准滴定溶液滴定金属离子M,若要求相对误差小于0.1%,则要求:()A.CM KˊMY≥106B.CM KˊMY≤106C.KˊMY≥106D.KˊMYαY(H)≥106