不属于串联四极杆线性离子阱质谱独有的扫描方式的是?() A.增强分辨扫描 B.增强子 发布时间:2019-02-04 03:52 │ 来源:www.tikuol.com 题型:单项选择题 问题: 不属于串联四极杆线性离子阱质谱独有的扫描方式的是?()A.增强分辨扫描B.增强子离子扫描C.MS/MS/MSD.选择离子扫描
题型:单项选择题 有如下程序: #include <iostream> using namespace std; class Base protected: int i; public: int j; ; class Derived:public Base int m; public: int n; ; int main() Derived d; d.i=0;//[1] d.j=0;//[2] d.m=0;//[3] d.n=0;//[4] return 0; 其中主函数中有两个赋值语句有错,这两个错误的赋值语句是______ 。A.[1]和[2]B.[1]和[3]C.[2]和[3]D.[2]和[4) 查看答案
题型:单项选择题 Today is his at the new school.[ ]A. the first day B. first day C. one day D. the one day 查看答案
题型:单项选择题 Someone who lacks staying power and perseverance is unlikely to________a good researcher. [ ]A. make B. turnC. get D. grow 查看答案