第2题: [单项选择]键盘上的Caps Lock键的作用是( )。 A. 退格键,按下后删除一个字符 B. 退出键,按下后退出当前程序 C. 锁定大写字母键,按下后可连续输入大写字母 D. 组合键,与其他键组合才有作用 参考答案:C 答案解析:[解析] 本题考核的是有关键盘的知识。Caps Lock键为锁定大写字母键,按下后 Caps Lock指示灯亮,再按下键盘字母键则输入大写字母。Back Space键为退格键,按下后删除光标所在位置前
第8题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard. A. He is starting the course late. B. The subject is diffieun for him. C. The professor is very reserved. D. The book is difficult to rea 参考答案:B 答案解析:[听力原文] Why is the man worried about the course [详细解答] 先看题目,再有针对性的认真听。会话中提到"I didn’t