地下工程防水,选用合成高分子防水卷材,当双层使用时,总厚度不应小于______mm。

题型:单项选择题

问题:

地下工程防水,选用合成高分子防水卷材,当双层使用时,总厚度不应小于______mm。

A.2.0

B.2.4

C.3.0

D.3.6

考点:防水工初级防水工初级
题型:单项选择题

分布在农村的老年人口约占

A.50%

B.80%

C.40%

D.70%

E.60%

题型:单项选择题

男性,56岁。患慢性骨髓炎8个月,血红蛋白70g/L,白细胞、血小板正常。血清铁6.21μmol/L,铁蛋白206μg/L,骨髓增生活跃,细胞外铁(+++)。

该病的发病机制描述不正确的是()

A.红细胞干细胞凋亡过早

B.红细胞生成素相对不足

C.机体造血储备能力降低

D.单核巨噬细胞释放内铁障碍

E.细胞利用铁障碍

题型:单项选择题
 信息匹配。
阅读下列应用文及相关信息,, 并按照要求匹配信息。首先请阅读下列餐馆的信息:
APasta House-new Italian restaurant located in the heart of the city. Simple but delicious inexpensive
meals. Also has a good range of vegetableonly meals. It's always crowded so be ready to order
takeaway or share a table. Open 11 am to midnight.
BA Taste of India-famous for its spicy curries and many southern Indian dishes using chilli. You will
usually be able to find a table during the week but if you're planning to go on the weekend, make sure
you book a table in advance. Open noon to midnight.
CParis Match-this is the finest French restaurant in the city. Wonderful food you can enjoy in luxurious
surrounding. The perfect place to have a romantic meal or impress a business partner, but be prepared
for a large bill. Open noon to 2 am. Booking essential.
DMountain Diner-not fancy but tasty. Excellent Asian and European dishes. Countryside location surrounded by forest. It's at least an hour's drive from the city, so you might want to stay at the nearby Mountain
Hotel, overnight. Open 7 am to 10 pm.
EOwl Cafe-open 24 hours a day, the cafe has a large selection of set breakfast, lunch and dinner meals
for you to choose from, or you can enjoy one of their many delicious snacks and desserts over a cup of
freshly made coffee.
FGreek Bistro-a lively restaurant that serves greatvalue Greek food and has live Greek music played by
a local band. Customers are encouraged to take part in the entertainment, so be ready for a night of loud
fun and laughter. Open 6 pm to 2 am.
以下是五个人的选择要求, 请匹配每个人拟选择的地方:
1. Bill was late getting up today so he hasn't had time to make breakfast. He wants to pick up something
   to eat before he goes to work so he has enough energy to last through to lunch time.
2. Julie works in the city and wants to get some lunch. She doesn't want anything too special so long as it
    is tasty and not too expensive. Julie likes all kinds of food but because she is on a diet she wants to
    avoid anything containing meat.
3. Sally has friends visiting her from outoftown and wants to take them to dinner. She wants to take them
    somewhere they can enjoy the atmosphere and have fun. She is a university student, so she doesn't have
    a lot of money and doesn't like her food too hot.
4. Albert is a businessman who will meet an important European client for a business dinner next week.
    Want to book a table at a quiet restaurant that will impress his guest with both its food and its
     surroundings.
5. Robert is meeting his friend Ben for lunch today (Tuesday) and wants to take him to a nice restaurant.
    Both Robert and Ben enjoy good quality spicy food. Robert doesn't like arranging things in advance so
   he hasn't booked a table.
题型:单项选择题

什么是煤的堆比重?

题型:单项选择题

若一个交换局的缓冲存储器的读出时钟频率大于写入时钟频率时会出现()

A、抖动

B、漏读

C、时延

D、重读

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