安装主题时，提示证书无效，或者证书过期，应该怎么办？
参考答案：
需要用证书重新给所要安装的软件签名。
Tomorrow would be Christmas Day, and she had only $1.87 .
A．with which to buy a present to Jim
B．by which to buy Jim a present
C．with which she could buy a present for Jim
D．in which to buy Jim a present
有以下程序，程序运行后的输出结果是( ) main() int a[10]=1，2，3，4，5，6，7，8，9，10)，*p=＆a[3]，*q=p+2； printf("%d\11"，*p+*q)；
A．16 B．10 C．8 D．6
