Machine testing is designed to detect the maximum number of errors.（)

A.maintenance

B.design

C.non-execution-based testing

D.execution-based testing

A、is to test executable code

B、is just to read code

C、is a phase following implementation phase

D、includes execution-based testing and non-execution based testing

A.Debugging

B.Maintenance

C.Regression testing

D.Acceptance testing

A.examining students’ recognition ofpronunciations

B.going abroad

C.testing students’ responsestoward certain sentences

D.asking students to match sentences with pictures

A.hypothesis

B.testing

C.correcting

D.reciting

A.Testing

B.Project Planning

C.Requirements

D.Documenting

B、In vitro testing of biomaterials is done in the living tissue of a living organism.

C、The advantage of in vitro testing is that the experiment can be controlled easily and precisely.

D、In vivo tests include animal testing such as rat, pig, machin and clinical trials in humans.

A.Machine too Machine

B.matter too matter

C.Machine to Machine

D.matter to matter

A.pages

B.pieces

C.strings

D.sheets

A.We'll have to take the machine apart to put it right.

B.had leaked

C.is leaking

D.leaked

E.has been leaking