【单选题】John decided to buy a computer, _________ it was a little expensive for him.
【简答题】自增自减运算符知识点2:以下程序输出结果为多少,(请写出推理过程,没有推理过程的按零分计算) main() {int i=010,j=10; printf("i=%d,j=%d\n",++i,j--); getchar();}
【单选题】It is obvious that John is unhappy. _________, it comes as no surprise that she has decided to change her job.
【单选题】听力原文:The doctor said that the operation would be quite expensive, but John decided to go ahead and have it, hoping to improve his health. (27)
A.
John did not want to have the expensive operation.
B.
Although the operation was expensive, John had to improve his health.
C.
The operation was too expensive to improve John's health.
D.
John's health has improved after the operation.
【单选题】John Keats was a poet of ______.
【简答题】甲是乙的儿子,但乙不是甲的父亲,为什么?请写出推理过程,并指出运用什么推理的什么式?
【简答题】已知,AC⊥AB,EF⊥BC,AD⊥BC,∠1=∠2,请问AC⊥DG吗?请写出推理过程.