安装在进风巷道中的压入式局部通风机和启动装置,距掘进巷道回风口不得小于()。A.5m 发布时间:2017-06-22 14:58 │ 来源:www.tikuol.com 题型:单项选择题 问题: 安装在进风巷道中的压入式局部通风机和启动装置,距掘进巷道回风口不得小于()。A.5mB.10mC.15mD.20m
题型:单项选择题 下图是某家族黑尿症的系谱图。 ①预计Ⅲ6是患病男孩的概率 ②若Ⅲ6是患病男孩,则Ⅱ4和Ⅱ5又生Ⅲ7,预计Ⅲ7是患病男孩的概率 [ ]A.①1/3,②1/2B.①1/6,②1/6 C.①1/6,②1/4 D.①1/4,②1/6 查看答案
题型:单项选择题 句子搭配。( )1. How are you? ( )2. How do you do? ( )3. Are you a boy? ( )4. What’s her name? ( )5. What color are the pens? ( )6. Nice to meet you! ( )7. Is this a green pen? .( )8. What’s this in English? ( )9. Can you spell "pencil"? ( )10. What’s your phone number? A. No, I’m a girl.B. Fine, thanks.C. It’s a pen.D. Her name is Amy.E. Nice to meet you, too! F. How do you do?G.. 235-236H. Yes, it is.I. They’re green.J. Yes. P-E-N-C-I-L, pencil. 查看答案