题目: 参与胶原蛋白合成的维生素是A.维生素AB.维生素B1C.维生素ppD.维生素CE.维生素K 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0622/c7d9923804974c57be0f8d7e712cc051.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:单项选择题 People ______ that vertical flight transports would carry millions of passengers as do the airliners of todayA. convinced B. anticipated C. resolved D. assured 查看答案