What does layabouts mean in the following sentence “That sounds like a good thing， certainly compared with the common public image of undergraduates as a bunch of pampered layabouts” ?

ATourists increased.

BTourists decreased.

CTourists were not informed of the eruption.

DTourists did not care about the eruption.

AAltogether， 53 cities have more than a million cars.

BThe total number of cars in Beijing has exceeded 6 million.

CBeijing ranks first in car ownership.

DBy early 2017， there were more than 2 million cars in 24 cities across the country.

对

错

对

错

对

错

A. deviated

B. disconnected

C. detached

D. distorted

AThe Cuban government will produce low-quality cigars.

BThe Cuban government will restrict the sale of high-quality cigars.

CThe Cuban government will raise the prices of cigars to gain more profits.

DThe Cuban government will cut the production of cigars.

ATo enhance manufacturing productivity.

BTo increase the number of small-scale farmers.

CTo improve social security measures.

DTo increase educational funding.

AHe has finished the study of metformin.

BDrugs can treat aging, so aging itself is a disease.

CWe can affect mortality by preventing a composite of age-related diseases.

DAll of the above.

AFederal officials and conservationists held a demonstration.

BConservationists had an outdoor exhibition.

CKenya crushed more than 1 ton of ivory.

DConservation groups burned 105 tons of elephant tusks.