某女， * * 出血，一月两潮，一次量多如常，一次量少，4天即净，为
A．月经先期B．月经过多C．经期延长D．经间期出血E．崩漏
参考答案：D
Despite the fact that they were ______ when they married, after 30 years they live together harmoniously.
A．contradictory
B．incompatible
C．contrary
D．compatible
时间研究的步骤？
