长钻孔注水方式中,其钻孔长度一般是工作面长度的(),钻孔直径为()。
参考答案:2/3、75mm-100mm
请仔细阅读题中各人的情况说明,从A—F六个套餐菜单中为各位选出符合要求的最佳选项,其中一项为多余选项。
小题1: Li Jing, a thin girl, likes French fries, fruits and ice-cream. She doesn’t like rice. She often feels tired and doctor suggests that she eat some more meat such as beef or pork.
小题2: Peng Tao, a heavy boy, likes hamburgers, hotdogs and pizzas very much. Chocolate is his favorite. But his parents don’t want him to eat too much, especially ice-cream.
小题3:Zhang Qi, a tall girl, likes running. Her favorite food is pizza. She exercises a lot and eats a lot. She likes coffee and she only drinks apple juice when she has to.
小题4: Bai Lei, a hungry boy, can’t live without rice and never eats seafood. He likes orange juice but not apple. He doesn’t want to spend more than 10 dollars for one meal.
小题5:Ding Yi is a 16-year-old girl. Her family don’t eat pork. She likes fish and potato chips. Her favorite drink is milkshake.
放幻灯时,要想使银幕上出现清晰的“F”字母,那么图中幻灯片的正确插法( )