【简答题】听力原文:When will the concert be held? When will the concert be held? It will be held ______.
【单选题】Professor Nelson wants to know _______. [ ]
A.
when the concert will begin
B.
when will the concert begin
C.
when would the concert begin
D.
when the concert would begin
【单选题】一般在夏季降低库房湿度的适宜时间是( )
【单选题】下列哪种不属于水不溶性污垢,一般采用清洗剂冲洗。
【判断题】幼儿体内水分相对较成人多,约占体重的70%-75% 。
【判断题】幼儿体内水分较成人多,约占体重的70%-75%。