打叶复烤的卧式打叶器采用先进柔打技术，其特点是：（）。
参考答案：大、中片率高
It was in the factory _________ his friend worked _______ he picked up a lot of experience. [ ]
A. where, where
B. that, where
C. that, that
D. where, that
妊娠水肿产生的原因包括（）
A.醛固酮灭活减少
B.白蛋白减少
C.水钠潴留
D.血浆胶体渗透压下降
E.静脉淋巴液回流受阻
