【单选题】听力原文:M: I hear Mary is going to college. What is she studying? W: She's taking courses in statistics, economics and accounting. What career does Mary probably plan to follow?
C.
Business administration.
【单选题】A) She made a mistake by taking too few courses in the first term. B) The courses she took were too difficult for her. C) She took too many courses during her first term. D) She found it difficult to ...
A.
She made a mistake by taking too few courses in the first term.
B.
The courses she took were too difficult for her.
C.
She took too many courses during her first term.
D.
She found it difficult to deal with college courses.
【多选题】测定人体的BMR应在下列哪些条件下进行( )
【单选题】听力原文:M: I heard Helen's going to college. What's she studying? W: She's taking courses in statistics, economics and accounting. Q: What career does Helen probably plan to follow? (18)
B.
Business administration.
【简答题】What are the most popular ESP courses in Britain? [A] Courses for doctors. [B] Courses for businessmen. [C] Courses for reporters. . [D] Courses for lawyers.
【单选题】常温下,下列有关离子浓度及pH大小的比较,正确的是 [ ]
A.
NH 4 + 浓度相同的下列溶液:①(NH 4 ) 2 Fe(SO 4 ) 2 ②(NH 4 ) 2 CO 3 ③(NH 4 ) 2 SO 4 ,溶液浓度由大到小的顺序是:③>②>①
B.
由pH=3的CH 3 COOH溶液与pH=11的NaOH溶液等体积混合,其离子浓度不可能是: c(CH 3 COO - )>c(Na + )> c(H + ) > c(OH - )
C.
pH=13的Ba(OH) 2 溶液与pH=1的HCl溶液等体积混合后,混合溶液的pH>7
D.
pH=12的Ba(OH) 2 溶液与pH=14的NaOH溶液等体积混合,混合溶液的pH范围是13
【多选题】径向柱塞泵改变排量的途径是 ,轴向柱塞泵改变排量的途径是 。
【单选题】径向柱塞泵改变排量的途径是( ),轴向柱塞泵改变排量的途径是( )。