【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 。
【单选题】No one knew the man’s age until he ______ it by accident.
【简答题】在画受力图的时候,我们会把梁用( )来表示。
【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)
【单选题】整理与分析资料属于社会调查过程的第()步?
【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: