【单选题】听力原文:W: Sir, you've been using the Online Catalogue for quite a while is there anything I can help you find? M: Boy, I've got to write a paper about Hollywood in the 30s and 40s, and I'm really strugg...
D.
In a historical museum.
【单选题】听力原文:M: Julie, I've heard you've got an online degree through distance learning. Congratulations! W: Thank you, Richard. That is attributed to the increased availability of the Internet throughout the...
A.
The benefits and disadvantages of distance education.
B.
How to get an online degree.
C.
The advantages of doing homework on the Internet.
D.
How to communicate with classmates on the Internet.
【单选题】听力原文:W: Sir, you've been using the online catalogue for quite a while, Is there anything I can do to help you? M: Well, I've got to write a paper about Hollywood in the 30s and 40s, and I'm really str...
A.
Searching for reference material.
B.
Watching a film of the 1930s'.
C.
Writing a course book.
D.
Looking for a job in a movie studio.
【单选题】实度变化对风力机特性的影响描述不正确的是()
A.
低实度风力机在较宽叶尖速比范围内,CP变化较大,且CP最大值较高
B.
高实度风力机CP对λ的变化非常敏感,产生一个陡峭的CP-λ曲线
C.
低实度风机的阻尼损失较高,造成CP最大值较低
D.
高实度风力机实度过高时,CP最大值将因失速损失而降低
【判断题】对于孤立磁核来讲,共振频率只取决于外加磁场的强度,当磁场强度一定时,其共振频率是一定的。
【单选题】听力原文:W: Sir, you've been using the Online Catalogue for quite a while is there anything I can help you find? M: I've got to write a paper about Hollywood in the 30s and 40s, and I'm really struggling....
【判断题】行业信息网是一个行业的门户网站,由于汇集了整个行业的资源,为供应商和客户了解行业信息提供了巨大方便,形成了一个网上虚拟的专业市场。
【判断题】按照商品所有权转移所经过的环节的多少,商品流通渠道大致可以分为直接流通渠道、间接流通渠道。