立克次体菌体较小，下列哪一种立次体最小，可通过滤菌器（） A._爱下问搜题

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问题单项选择题

立克次体菌体较小，下列哪一种立次体最小，可通过滤菌器（）

A.普氏立克次体

B.Q热立克次体

C.莫氏立克次体

D.西伯利亚立克次体

E.小蛛立克次体

答案

参考答案：B

阅读理解

阅读理解。

     My day starts at about 7 o'clock when Dad and Mom get up. We have breakfast at 8 o'clock. I like to eat
cereal and bread. I also drink a glass of milk. Mom usually has bread, a glass of orange juice and a cup of
coffee. Dad likes to have French fries, two eggs and a sausage (香肠). My sister only eats fruit.
     After breakfast, my sister and I put on our school uniforms (校服). I wear black pants, a white shirt and a
blue sweatshirt (长袖运动衫).
     Mom picks us up (接) from school at 3:15 in the afternoon. We go straight home, and my sister and I
watch TV or play games on the computer.

根据短文内容，完成下列表格。

Time	Thing(s) they do
Seven o'clock	Dad and Mom (1)______.
Eight o'clock	We have breakfast: I have cereal, bread and (2)______. Mom has bread, some orange juice and (3)______. Dad has French fries, two eggs and a sausage. My sister only eats fruit.
(4)_______	Mom picks us up from school.
After school at home	My sister and I watch TV or (5)______.

填空题

函数y=|sinx|cosx-1的最小正周期与最大值的和为（）。