电讯检疫必须是持有效卫生证书的国际航行船舶在抵港前12小时，通过船舶公司或船舶代理向港口或锚地所在地检验检疫机构以电报形式报告。（）
参考答案：错
Mothers holding jobs outside the home should have __________ schedules to make it easier to care for
their children.[ ]
A. heavy
B. smooth
C. flexible
D. complex
Football is one of ____ in China.[ ]
A. more popular sport
B. the most popular sport
C. more popular sports
D. the most popular sports
