6.ͶʵķշɢۣԵʽͶABĿ
A.ABĿȫأϺķϵͳտԳֵ
B.ABĿϵС0ϺķϵͳտԼ٪
C.ABĿϵ0С1ʱϺķϵͳղܼ٪
D.ABĿȫأϺķϵͳղҲ
7.и£ҵӪյУ
A.ҵծ
B.ԭϼ۸䶯
C.ҵƷ»ڹ
D.ҵƷȶ
8.иУܹӰ쵥ʲĦϵУ
A.ʲʵı
B.гı
C.ʲгʵϵ
D.ϵ
9.ͶҪͶʱʣ˵ȷУ
A.ճ̶ԽߣҪıԽ
B.ԽߣҪıҪԽ
C.Ͷ߶Էյ̬ԽǻرܣʾԽ
D.ճ̶ԽߣҪıҪԽ
10.йʲ֮ϵʾȷǣ
A.ϵΪ1ʱͶʲܵκͶʷ
B.ϵΪ-1ʱͶʲķտԳֵ
C.ʲ֮ԽСͶϿɷɢͶʷյЧԽ
D.ʲ֮ԽͶϿɷɢͶʷյЧԽ
