迅速出血量占全身总血量的比例为多少时，即可出现休克 A．5% B．15% C．30%

It was difficult to get a word in. Everyone _____ so excitedly about the play.[ ]

A. would talk

B. was talking

C. talked

D. had talked

某种单烯烃经氢化后得到的的饱和烃是，该烯烃可能有的结构是（   ）种                                              

A．1种

B．2种

C．3种

D．4种

根据句意和汉语提示写出单词，完成句子。

小题1:         (母亲)Day is on the second Sunday of May.

小题2:Teachers are usually             (严格的) with their students in class.

小题3:Tom’s             (到达) made all of us very excited.

小题4:Trains           （在……之间）cities run faster and faster now.

小题5:Ang Lee won an Oscar for Best           (导演)for the film Life of Pi

赵某，女。45岁，患者头痛二周，加重三天，疼痛呈持续性，以前额及两颞部疼痛为主。眠差，舌淡红，苔薄白

此病例按头痛部位应辨证属哪条经脉（）.

A.阳明头痛、厥阴头痛

B.阳明头痛、太阳头痛

C.阳明头痛、少阳头痛

D.少阳头痛、太阳头痛

E.以上都不是

A publisher is now providing university professors with the option of ordering custom textbooks for their courses. The professors can edit out those chapters of a book they are not interested in and add material of their own choosing.
The widespread use of the option mentioned above is LEAST likely to contribute to fulfilling which of the following educational objectives

A．Coverage of material relevant to a particular student body’s specific needs.

B．Offering advanced elective courses that pursue in-depth investigation of selected topics in a field.

C．Ensuring that students nationwide engaged in a specific course of study are uniformly exposed to a basic set of readings.

D．Making the textbooks used in university courses more satisfactory from the individual teacher’s point of view.

E．(E) Keeping students’ interest in a course by offering lively, well-written reading assignments.