A. 显示所有处于IT状态的SBL B. 显示所有SBL的状态 C. 显示所有不在IT状态的SBL 参考答案:C
第4题: [单项选择]The opening ceremony is a great occasion. It is essential _______ for that. A. for us to be prepared B. that we are prepared C. of us to be prepared D. our being prepared 参考答案:A 答案解析:[汉译] 开幕式是件大事,我们要做好准备。
[注释] 不定式在句中做主语补足语。