环管工艺装置中粉料中残余催化剂失活的介质是（）。A、氮气 B、空气 C、蒸气 D、热

What great trouble we had ____ where his house was.

A．in finding

B．to find

C．find

D．found

不符合对慢性粒细胞白血病加速期描述的是

A．血或骨髓原始细胞≥20%

B．不明原因的血小板进行性减少或增高

C．除Ph染色体外又出现其他染色体异常

D．可持续几个月到几年

E．外周血嗜碱性粒细胞＞20%

A world-famous Canadian author, Margaret Atwood, has created the world’s first long-distance signing device(装置), the LongPen.

After many tiring……from city to city, Atwood thought there must be a better way to do them . She hired some technical experts and started her own company in 2004. Together they designed the LongPen. Here’s how it works: The author writes a personal message and signature on a computer tablet(手写板) using a special pen. On the receiving end, in another city, a robotic arm fitted with a regular pen signs the book. The author and fan can talk with each other via webcams(网络摄像机) and computer screens。

Work on the LongPen began in Atwood’s basement(地下室). At first, they had no idea it would be as hard as it turned out to be. The device went through several versions, including one that actually had smoke coming out of it. The investing finally completed, teat runs w ere made in Ottawa, and the LongPen was officially launched at the 2006 London Book Fair. From here , Atwood conducted two transatlantic book signings of her latest book for fans in Toronto and New York City.

The LongPen produces a unique signature each time because it copies the movement of the author in real time. It has several other potential applications. It could increase credit card security and allow people to sign contracts from another province. The video exchange between signer and receiver can be recorded on DVD for proof when legal documents are used.

“It’s really fun”, said the owner of a bookstore, who was present for one of the test runs. “Obviously you can’t shake hands with the author but there are chances for a connection that you don’t get from a regular book signing..

The response to the invention has not been all favorable. Atwood has received criticism from authors who think she is trying to end book tours. But she said, “It will be possible to go to places that you never got sent to before because the publishers couldn’t  afford it.”

小题1:Why did Atwood decide to invent the LongPen?

A. To set up her own company

B. To win herself greater popularity

C. To write her books in a new way

C. To make book signings less tiring

小题2:How does the LongPen work?

A．I copies the author’s signature and prints it on a book.

B．It signs a book while receiving the author’s signature.

C．The webcam sends the author’s signature to another city.

D．The fan uses it to copy the author’s signature himself.小题3:What do we know about the invention of the LongPen?

A．It has been completed but not put into use.

B．The basement caught fire by accident.

C．Some versions failed before its test run.

D．The designers were well-prepared for the difficulty.小题4:How could the LongPen be used in the future?

A．To draft legal documents.

B．To improve credit card security

C．To keep a record of the author’s ideas.

D．To allow author and fan to exchange videos小题5:What could be inferred from Paragraphs 5 and 6?

A．Atwood doesn’t mean to end book tours.

B．Critics think the LongPen is of little use

C．Bookstore owners do not support the LongPen

D．Publishers dislike the LongPen for its high cost

我们发现零工制度有一个重要的支持机制就是完善的、科学化的员工培训系统。几乎所有的现代企业和公司都非常重视内部培训，有的企业主甚至成为了培训狂，哪怕有一秒钟的空闲也要为员工安排一次培训。但真正有效的培训并不是无休止的洗脑和课程轰炸，不是“潜能激发”和“感恩教育”，而是适合公司运营需求的专业性、针对性、科学性的业务训练。这种培训机制如果能够建立起来，无论你是否采用零工制度都会对企业的发展起到重要的推动作用。
这段文字意在说明( )。

A．很多公司培训缺乏科学性

B．科学的员工培训对企业很重要

C．零工制度不一定适合所有企业

D．过度培训可能会造成相反效果

为什么说真核细胞比原核细胞进化？