如明确上述诊断最可靠的检查手段为
A．宫腔镜检查
B．盆腔B超
C．分段诊刮
D．腹腔镜检查
E．基础体温测定
参考答案：D
240×18的积是______位数，250×60的积的末尾有______个0．
Little Tom can draw His drawings are very .
A．good; well
B．well; good
C．good; good
D．well; well
