第9题: [单项选择]下列哪项不是月经的生理现象 A. 周期21~35天 B. 经期3~7天 C. 经量100~150ml D. 经色暗红 E. 经质不稀不稠,无血块,无特殊气味 参考答案:C 答案解析:[解析] 月经的生理现象 [解析] A、B、D、E均为月经的生理现象。C是月经过多的表现,正常的月经量应该在50~80ml为适宜。故选C。
第13题: [单项选择]—How often do his parents let him watch TV —______. A. In two days B. When he finishes his homework C. Only once a week D. In the evening 参考答案:C 答案解析:How often…是频率疑问词,所以回答应是多长时间一次。Only once a week意为“一周只一次”。