SS琼脂培养基是选择性很强的培养基，成分较多，其指示剂为（） A.牛肉膏蛋白胨 B. 发布时间：2017-06-12 23:56 │ 来源：www.tikuol.com 题型：单项选择题 B型题 问题： SS琼脂培养基是选择性很强的培养基，成分较多，其指示剂为（）A.牛肉膏蛋白胨B.煌绿、胆盐、硫代硫酸钠、枸橼酸盐C.乳糖D.胆盐E.中性红
题型：单项选择题 B型题 完形填空. It's a Sunday morning. Jack and his father 1 on a big bus. There are 2 people on it.Some of 3 come from America and some 4 England and Canada. They are all friends.They are going to the Summer Palace (颐和园).There are two 5 0n the bus. One is a man. He is the driver. He 6 the bus. 7 _ is a young woman. She 8 good English. She is talking about the Summer Palace. All the passengers(乘客) are listening 9 her. They like the Summer Palace. They want 10 it very much.( )l. A. am ( )2. A. many ( )3. A. they ( )4. A. be from ( )5. A. China ( )6. A. is drive ( )7. A. Other ( )8. A. talk ( )9. A. with ( )10.A. see B. is B. much B. them B. is from B. Chinese B. drive B. The others B. talks B. to B. seeing C. are C. a lot C. their C. are from C. Chineses C. is driving C. Another C. speak C. for C. to see D. be D. a little D. theirs D. comes fromD. England D. driving D. The other D. speaks D. of D. to look 查看答案
题型：单项选择题 B型题 设f(x)=3x+3x-8，用二分法求方程3x+3x-8=0在x∈(1，2)内近似解的过程中得f(1)＜0，f(1.5)＞0，f(1.25)＜0，则方程的根落在区间 [ ]A．（1，1.25） B．（1.25，1．5） C．（1.5，2） D．不能确定 查看答案
题型：单项选择题 B型题 重大事故应急预案中的( )主要是针对临时活动中可能出现的紧急情况，预先对相关应急机构的职责、任务和预防性措施作出的安排。A．现场处置方案B．专项预案C．单项预案D．综合预案 查看答案
题型：单项选择题 B型题 张老师发现自己班上的学生小花最近总是闷闷不乐、情绪低落，于是带着小花来见社会工作者小江。小江在询问过程中观察到，小花一直低着头不说话，都是张老师在替她回答问题。上述案例中，小花属于（）的服务对象。A.潜在B.现有C.自愿D.外展 查看答案