问题 填空题

柴油机启动前应确保变速机构操纵杆位于()位。

答案

参考答案:空档

问答题 案例分析题

芸芸众生的日常生活是历史的重要内容。从中可见社会变迁的轨迹。

材料一:16世纪,美洲的一种辛辣调味剂传入欧洲,为欧洲饮食带来新的味道,颇受欢迎,被称为“西班牙胡椒”。17世纪,欧洲人能够在餐桌上品尝到来自海外的美味,主要是荷兰人的功劳。

——据《欧洲文化史》等

材料二:“(清末)因工业之衰落日甚一日。尽试任人一家人,观其日常所服用者,无论为必要品为奢侈品,其来自他国者恒十而八九。”

——《饮冰室合集》

材料三:2005年底,美国财经记者莎拉发现,自己家里的鞋、袜子、玩具台灯等用品都产自中国,其他普通美国家庭亦大多如此。

——据《离开中国制造的一年》

材料四:2004年9月16日晚,数百名西班牙人呼喊反对中国鞋商的口号,来到埃尔切中国侨胞鞋类批发商店比较集中的卡鲁斯工业区,并向中国侨胞开设的鞋店扔石块。大约20名示威者烧毁了一个装满中国鞋子、约1000平方米的华商仓库。此外,示威者还在街上烧毁了一个装满中国鞋子的集装箱。

注:埃尔切是西班牙巴伦西亚自治区第3大城市,素有“欧洲第一鞋城”的美誉。这座小城正是依靠发展制鞋业,一跃成为西班牙全国人均收入最多的城市之一。

材料三中莎拉发现的现象在上世纪五六十年代是无法想象的,中国产品后来大量进入普通美国家庭的历史原因有哪些?

单项选择题

Electronic mail has become an extremely important and popular means of communication.
The convenience and efficiency of electronic mail are threatened by the extremely rapid growth in the volume of unsolicited commercial electronic mail. Unsolicited commercial electronic mail is currently estimated to account for over half of all electronic mail traffic, up from an estimated 7 percent in 2001, and the volume continues to rise. Most of these messages are fraudulent or deceptive in one or more respects.
The receipt of unsolicited commercial electronic mail may result in costs to recipients who cannot refuse to accept such mail and who incur costs for the storage of such mail, or for the time spent accessing, reviewing, and discarding such mail, or for both. The receipt of a large number of unwanted messages also decreases the convenience of electronic mail and creates a risk that wanted electronic mail messages, both commercial and noncommercial, will be lost, overlooked, or discarded amidst the larger volume of unwanted messages, thus reducing the reliability and usefulness of electronic mail to the recipient. Some commercial electronic mail contains material that many recipients may consider vulgar or pornographic in nature.
The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services, businesses, and educational and nonprofit institutions that carry and receive such mail, as there is a finite volume of mail that such providers, businesses, and institutions can handle without further investment in infrastructure. Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mail.
Many senders of unsolicited commercial electronic mail purposefully include misleading information in the messages’ subject lines in order to induce the recipients to view the messages. While some senders of commercial electronic mail messages provide simple and reliable ways for recipients to reject (or "opt-out" of) receipt of commercial electronic mail from such senders in the future, other senders provide no such "opt-out" mechanism, or refuse to honor the requests of recipients not to receive electronic mail from such senders in the future, or both.
Many senders of bulk unsolicited commercial electronic mail use computer programs to gather large numbers of electronic mail addresses on an automated basis from Internet websites or online services where users must post their addresses in order to make full use of the website or service.
The problems associated with the rapid growth and abuse of unsolicited commercial electronic mail cannot be solved by the government alone. The development and adoption of technological approaches and the pursuit of cooperative efforts with other countries will be necessary as well.

Which of the following is NOT true about unwanted e-mail

A. It costs money to receive them.
B. It’s free to store them.
C. It takes time to access them.
D. It takes time to throw them away.