粘膜下子宫肌瘤最常见的症状是
A．下腹包块B．痛经C．不育D．白带过多E．月经过多，经期延长
参考答案：E
Many children may be fond of animals， but ever think of making the study of animals their career.
A．a few
B．few
C．some
D．any
E601型蒸发器，在土圈的北面留一小于40.0（）的观测缺口，蒸发桶的测针座应位于观测缺口处。
A、dm
B、cm
C、mm
D、m
