【单选题】Listen to Track 52.
A.
To correct a misstatement he made about the Sahara's climate
B.
To suggest that the current dryness of the Sahara is exaggerated
C.
To indicate that scientists are not in agreement about the Sahara's past climate
D.
To emphasize the difference between the current and past climates of the Sahara
【简答题】治疗产后发热血虚证,应首选的方荆是( )
【简答题】如图所示的是某款电热水龙头的电路原理图,R1、R2为电热丝,通过旋转手柄可使扇形开关s同时接触两个相邻触点,实现冷水、热水、温水档之间的转换。当开关通时接触2、3触点时,水龙头放出的是 水(填冷or温or热),若R2=2R1,水龙头在温水当正常工作时的定功率为2000w,则它在热水档正常工作一小时消耗的电能是 J。
【单选题】听力原文: The nation's service sector expanded at a faster-than-expected pace in May, suggesting it could help sustain broader economic growth as the automotive and housing industries slump, a research gr...
C.
Development of automotive industry.
D.
Development of housing industry.
【简答题】治疗产后发热血虚证,应首选的方剂是( )
【单选题】旋光性物质具有旋光性的根本原因是( )。