A、 为所给方程的解,但不是通解
B、 为所给方程的解,但不-定是通解
C、 为所给方程的通解
D、 不为所给方程的解
答案：B
解析：试题解析:本题考查的知识点为线性常系数微分方程解的结构.
A、 为所给方程的解,但不是通解
B、 为所给方程的解,但不-定是通解
C、 为所给方程的通解
D、 不为所给方程的解
答案：B
解析：试题解析:本题考查的知识点为线性常系数微分方程解的结构.
A. to get ready
B. get ready for
C. getting ready for
D. by getting ready
解析：解析:get ready for 为……准备
A. 只看到人的思想动机的作用,不懂得人民群众是历史的创造者
B. 宣扬英雄史观
C. 宣扬上帝创世说,否定进化论
D. 不了解社会中存在着阶级
A. how do they cost
B. how many do they cost
C. how much do they cost
D. how much they cost
A. at most
B. above all
C. after all
D. at the first
A. are sold
B. sell
C. sells
D. have been sold
A. what does the house look like
B. what the house looks like
C. how does the house look like
D. how the house looks like
A. he
B. him
C. they
D. them
解析：解析:have sb. do sth. 让某人做某事
A. can＇t they
B. aren＇t they
C. don＇t they
D. won＇t they
