【多选题】下列说法正确的是( )
B.
膳食纤维的摄入与冠心病的发病率和死亡率成负相关
【单选题】Jill made up her mind to become a teacher ______.
A.
immediately after she was paralyzed
B.
because Jill had dreamed to be one since her childhood
C.
when she had learned to write, to type, and to feed herself
D.
when she had recovered from her sadness over her boyfriend's death
【单选题】常用表面粗糙度评定参数有两个,他们是( )
A.
轮廓算术平均偏差 R a 和微观不平度十点高度 R z
B.
轮廓算术平均偏差 R a 和轮廓最大高度 R y
C.
廓算术平均偏差 R a 和微观不平度十点高度 R y
D.
轮廓算术平均偏差 R a 和轮廓最大高度 R z
【单选题】下列说法中,错误的是
C.
膳食纤维的摄入量与冠心病的发病率和死亡率成负相关
【多选题】关于水合状态与健康,下列说法正确的是( )。
C.
脱水和高钠状态会刺激内皮细胞炎症信号并促进动脉粥样硬化的发生和发展
D.
脱水是引起头痛和偏头痛的主要原因,热应激时的偏头痛常常是脱水的标志
【简答题】根据首字母填空。 Have you ever walked into a room and felt relaxed? It could be because the walls were painted blue, a calm and quiet color. Some c 1_ make us feel calm. Blue is one of these colors. Weari...
【单选题】听力原文: City people usually think they are a lot smarter than country people. They often laugh at simple country ways. But people do not laugh at country music. It is one of the most popular kinds of mu...
B.
human feelings and events.
D.
the Appalachian Mountains.