单项选择题
以下程序的输出结果是______。 main() { union { char i[2]；int k；} r； r.i[0]=2；r.i[1]=0； printf("%d\n"r.k)； }
单项选择题 He was hit on the head by a piece of iron and was knocked ______ .
单项选择题 ______ the difficulty of the task, I shall be lucky to complete it by May.
单项选择题 What did he say in the letter I really can't ______ it out.
