问题
单项选择题
Distress signal are always stored in the memory so as to start（）.
A.local-mode coverage
B.SAR operation
C.data process
D.continuous broadcast
答案
参考答案：D
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Distress signal are always stored in the memory so as to start（）.
A.local-mode coverage
B.SAR operation
C.data process
D.continuous broadcast
参考答案：D
| 任务型读写 请认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。 注意：每个空格只填1 个单词。 It's that time of year again! The holidays are coming up, and you know what that means … it's time to shop! Being the busy person that you are, most likely you will do some of your shopping online. And who can blame you? Great prices, great selection, free giftwrap( 礼品包装) … what's not to love? But take care; taking advantage of the convenience in shopping online could bring risks to both your personal information and your PC. As long as you're aware of the key issues, you can shop anytime, with the knowledge to protect you. Not every Website and online shop is a safe and reputable merchant! The truth is many thieves are quite skilled at crafting very convincing, legitimatelooking( 貌似合法的) online shopping sites. Be very careful who you purchase from! Make sure you know where you're shopping and that you read all the rules. A common phishing tactic ( 网络钓鱼策略)targeting( 把……作为目标) online shoppers makes use of online promotions and sales to encourage a consumer to enter personal information in order to receive coupons ( 赠劵) or other gifts. While many reliable sites offer coupons or samples, they will never ask for extra amounts of personal information, most only require a name and email address. But don't back away from the PC just yet! By taking into consideration a few simple actions, you can protect your credit, purchases, and personal information while shopping online. Go ahead and give that credit card a practice. You can be safe. (1)Always shop from a safe PC. (2)Try to stick to the sites you know and trust … such as Amazon, Overstock, and large store websites. (3)If you heard about a "great gift" or "special offer" through an email from an unknown address, it is likely fake( 虚假的) and should be avoided. (4)Make sure that the connection to the website is an http. This doesn't guarantee safety, but in most cases these sites are safe. (5)Consider choosing ways of payment, such as cash upon delivery. So enjoy your online holiday shopping. Giving the gift of happiness this holiday season doesn't have to cost you more than you've expected.
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