第25题: [单项选择]Each Class A EPIRB shall be stowed in a manner which will permit(). A. easy access to its storage compartment B. replacement of the battery without exposure to the weather C. it to float free if the vessel sinks D. it to remain attached to the vessel 参考答案:C
第26题: [单项选择]早期妊娠是指 A. 妊娠第6周末以前 B. 妊娠第8周末以前 C. 妊娠第10周末以前 D. 妊娠第12周末以前 E. 妊娠第14周末以前 参考答案:D