A.90°
B.180°
C.110°
D.160°
E.150°
[问答题]-----------.
[问答题]--------------.
[单选题]A.0B.C.D.E.1
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.x≠1B.x≠-1C.x≠0D.x>-1E.x>1
[单选题]A.x≠1B.x≠-1C.x≠0D.x>-1E.x>1
[单选题]A.0B.C.D.E.1
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分D
[单选题]A.0.4B.0.6C.0.5D.0.3