题目

一重量G为10N的木块静止在倾角为37°的斜面上则它所受到的静摩擦力为(sin370=0.6 cos370=0.8)（    ） A．3N         B．6N       C．8N        D．10N 答案：B 补全对话 阅读对话根据横线后所给标点符号的提示，在横线上填上适当的句子，使对话完整。 A: Hi Bruce, good news for you. B:1＿＿＿＿＿＿＿? A: You won the first prize in the English competition. B: Wow!  I’m so glad to hear that .2＿＿＿＿? A: Our English teacher did. She said three of the students in our class won the prize. B: What about you? A: I was the winner ,too.  I think I was lucky this time. B: So great. Congratulation! A: It’s a great day for us today. Let’s go out and relax ourselves, shall we? B:Good idea, but 3＿＿＿＿＿＿＿? A: To the park, Ok? B: All right. Let’s go.