问题
选择题
在正方体ABCD﹣A1B1C1D1中，若M为的棱BB1的中点，则异面直线B1D与AM所成角的余弦值是（ ）
答案
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在正方体ABCD﹣A1B1C1D1中，若M为的棱BB1的中点，则异面直线B1D与AM所成角的余弦值是（ ）
| 完形填空。 This is __1__ bedroom. It's a nice room. You can see a bed, two __2__, a chair and a baseball on the floor. What __3__ see on the wall? You can see __4__ and a kite on the wall. You can also (还) see a window __5__ wall. Where's __6__ light (灯)? It's on __7__ table. Some plants are on the table, __8__. Where __9 __ his pencil-box and books? They're on the other (另一个) table. You can see a clock __10_ it. Under the chair is his baseball. It's a nice bedroom. | ||||
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