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【判断题】
The time required to propagate from the beginning of the link to a router is the propagation delay
A.
正确
B.
错误
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【简答题】智能家居的未来发展方向是 发展,同时 标准,根据 , 智能家居产品,打造多个智能家居 。
【判断题】远程医疗应用是智能家居的重要发展方向之一。
A.
正确
B.
错误
【单选题】You can make healthy meals at home if you are willing to do the work involved in shopping and cooking. But preparing haute cuisine (法式高级烹饪) in your own kitchen is another story. That takes a lot more ...
A.
if you like cooking, you can make healthy meals
B.
there are many stories about preparing meals at home
C.
it's not easy to cook some special food at home
D.
when you are getting older, you will lose your cooking skills
【单选题】No one knew the man’s age until he ______ it by accident.
A.
display
B.
revealed
C.
exhibit
D.
exposed
【单选题】No one knew the man's age until he ____ it by accident.
A.
displayed
B.
revealed
C.
exhibited
D.
exposed
【单选题】If you are going to lose weight, you should ______.
A.
order your meals with three different sizes
B.
carefully plan your meals according to the portion sizes
C.
make a plan of cooking your own meals
D.
have three fresh meals every day
【简答题】The things you eat every day at meals.
【简答题】Use a red pencil to ______ all the foods or meals you think are not so good for you and should be avoided. (line)
【判断题】中 是估计总体均值是的允许误差。
A.
正确
B.
错误
【简答题】请考生在第(22)、(23)、(24)三题中任选一题作答,如果多做,则按所做的第一题记分。做答时用2B铅笔在答题卡上把所选题目的题号涂黑。 (22)(本小题满分10分)选修4-1:几何证明选讲 如图,已经⊙O和⊙M相交于A、B两点,AD为⊙M的直径,直线BD交⊙O于点C,点G为弧BD中点,连结AG分别交⊙O、BD于点E、F,连结CE. (Ⅰ) 求证:AG·EF=CE·GD; (Ⅱ) 求证:
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