题型：判断题 Clean the Snow In the morning Mr Smith comes into the garden at the back of his house. 1_______ Mr Smith wants to take his car out, so he asks a man to clean the road from his garage to the gate. He says to the man," 2 ___It will damage the flowers in my garden, and don't throw any on the other side for it will damage the wall. 3 "Then he goes out. When he comes back, the path is clean. 4 But when he opens the garage to get his car out, he sees: 5 A.The garage is full of snow from the path, and his car is under the snow !B. He sees so much snow in the garden.C. Don't throw any snow on that side.D. There is no snow on the flowers, or the wall or the street.E. And don't throw any into the street, or the policeman will come. 查看答案
题型：判断题 一平面通过两点M1（1，1，1），M2（0，1，-1），且垂直于平面x+y+z=0，则它的方程为（）。A.2x+y-z=0B.2x-y十z-0C.x-y-z=0D.2x-y-z=0 查看答案
是聚变
是裂变
是α衰变
是裂变