Scientists have discovered a close （） between smoking and several serious diseases.
A: action
B: connection
C: union
D: combination
A: action
B: connection
C: union
D: combination
举一反三
- There is some_______ between cigarette smoking and certain diseases. A: adoption B: solution C: connection D: information
- 7. There is some ________ (connect) between cigarette smoking and certain diseases.
- This research conducted by these six scientists is in _________ with Yale University. A: conjunction B: connection C: collaboration D: combination
- By the year 2010, scientists probably ______ an effective treatment for cancer. A: will have discovered B: are discovering C: will be discovering D: have discovered
- An economic crisis usually comes in ________ with serious unemployment in a country. A: connection B: relation C: association D: combination