AB |
AC |
AB |
AC |
A.-
| B.0或
| C.
| D.0或-
|
AB |
AC |
AB |
AC |
16+(k-3)2 |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
AC |
AB |
AC |
AB |
AC |
| ||||
|
-24 |
5×5 |
24 |
25 |
a |
b |
c |
0 |
a |
b |
c |
19 |
a |
b |
a |
b |
A.30° | B.45° | C.60° | D.以上都不对 |
A.30° | B.45° | C.60° | D.90° |
a |
b |
a |
b |
A.0° | B.45° | C.90° | D.180° |
P |
q |
p |
q |
A.锐角 | B.钝角 | C.直角 | D.不确定 |
a |
b |
a |
b |
3 |
a |
b |
A.
| B.
| C.
| D.
|
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