下列指标不属于相对数的是（） A.率 B.构成比 C.相对比 D.均数 E.比

阅读短文，回答问题。

     Hello, everyone. Here is something important for everyone going to London nextmonth. As you

know, you are going to stay with a family for two weeks. Now, the most important thing is money. You

should take about $530 with you. I think itwill be enough for everyone. Then, when you arrive, your new

family will meet you. You must remember to wear a red shirt, so the family will find you easily. They've

been told you all wear red shirts. You'll also need to take with you 4 photos of yourself and, of course,

it's very important that you take the school letter. While you're there, if you have any problems, you can

call Leech School Office. I'll give you the office phone number now: it's 580-4436 and the person to ask

for is Mr. s Belcher…She's in the office from nine o'clock in the morning until five in the afternoon every

day. OK. That's everything. Have a good journey!

1. Where are they going to?

     ___________________________

2. How long are they going to stay there for?

     ___________________________

3. Why must they wear red shirts?

     Because the family_____them_____

4. What's the school office telephone number?

     ____________________________

5. What could Mr. s Belcher's job be according to the reading?

     She could be a(an)______________

纳税人为销售货物而出租包装物收取押金，对其逾期未收回包装物而不再退还的押金，应并人销售额征收增值税，并人销售额的押金所使用的税率是( )。

A．包装物的适用税率

B．所包装货物的适用税率

C．包装物和所包装货物的平均税率

D．6%的征收率

关于人体正常、病理组织和体液的回声特点，下述哪一项不正确（）

A.液体是无回声的，所有的实性组织是有回声的

B.胸膜-肺界面回声很强，其后方伴有声影

C.肝脾实质呈中等水平回声，比肾皮质回声略强

D.尿液和胆汁通常是无回声的

E.结石为强回声，多数伴有声影

离心后尿沉渣每高倍视野红细胞在几个以上称为血尿( )

A．2个
B．3个
C．4个
D．5个
E．6个

孕后出现腰酸腹痛，下腹坠胀，或 * * 有少量出血者，称为：（）

A.胞阻

B.胞漏

C.胎漏

D.堕胎

E.胎动不安