以下关于登革病毒的描述正确的是（） A.耐热 B.单链正股DNA C.有3个血清型

根据下列短文的意思及首字母提示，完成单词。

      Guo Peng g   1    up at six-thirty every morning, and he g   2    to school at seven forty. He h   3    math

at eight-thirty and science at nine thirty. Biology is his f   4    subject. He l   5    it because it's really i   6   .

     Mr Baodwin is his math teacher. He e   7    lunch at school. His music and P.E.classes are usually in the

afternoon. They are r   8    , but he d   9    like history. Because it's b   10   . He had seven classes on

Monday, Tuesday and Thursday. He has six classes on Wednesday and Friday.

1.______ 2.______ 3.______ 4.______ 5.______

6.______ 7.______ 8.______ 9.______ 10.______

卫生湿巾除必须达到相应的微生物指标外，对大肠杆菌和金黄色葡萄球菌的杀灭率须达到多少（）。

A.≥50％

B.≥80％

C.≥70％

D.≥90％

E.≥99％

紫菀的功效为（）

A.温肺化饮平喘

B.敛肺止咳平喘

C.清肺化痰止咳

D.润肺化痰止咳

E.宣肺止咳平喘

血红蛋白尿和血尿的鉴别方法为（）

A.尿潜血试验

B.尿三杯试验

C.尿常规

D.尿红细胞计数

E.尿补体测定

专业大户贷款单户额度不超过500万元，家庭农场贷款单户额度不超过1000万元。