24 According to the passage, which of the following is NOT the author's main concern?
(A)Safety
(B)Training
(C) Legal issues
(D)Raw material

20(A)“Buy this limited edition now!”(B) “Buy one get one free.” (C)“Last day on sale.” (D)“Warehouse clearing.”

21 (A)“We are lovin' it.”(B) “Just do it.” (C)“We are family.”(D) “Trust me, I 'm a celebrity.”

22 (A)“Buy a bundle: cable TV, telephone, and Net--all in one.” (B)“Buy a one-year service and get three extra months free. ” (C)“Leave us your address and you'll get a free quote.” (D)“Subscribe to a family package and save.”

23. Which of the following is NOT a good reason for the excitement surrounding 3D printing? (A)It enables a “maker movement” as more people apply the technology to their daily lives. (B)Food-loving enthusiasts can finally create dough and other culinary treats manually. (C)It has the capability to print on demand whenever an object is needed. (D)It enables the do-it-yourself community to make everything they need.

25 Which of the followings is most likely a legal issue in 3D printing? (A)Teaching employees skills for using the technology. (B)Computer-based models are developed and then adapted to machining. (C)Printing an object that is protected by patents. (D)Following instructions from a computer and stacking raw material into layers.

1 Visitors to the museum can learn about_____ , physiology, and health by examining real human bodies that have been medically preserved. (A)anatomy (B)analogue (C) analogy(D) anarchy

2 Stacy was keeping the project_____ , so it could be finished on time. Her supervisor was satisfied with the result. (A)on track (B) by default(C)from scratch (D)in season

3 The new law prohibits insurance companies from discriminating against disabled children by denying them_____ coverage or charging them premiums. (A)apprehensive (B)indeterminate (C) exorbitant (D)optimum

4 After refusing to_____ the election result last night, the candidate issued a statement this morning demanding a recount. (A)besiege (B)acknowledge (C) elevate (D)preside

5 Mary can only attend one of the_____ sessions at the conference. (A)concurrent (B)deliberate (C) perspective (D)reluctant