Armed conflicts and civil strives forced people to flee away from their usual place of residence.

对

错

对

错

对

错

AState-owned Chinese airlines.

BAll the Chinese airlines.

CChinese commercial airlines.

DInternational airlines.

ASouth American companies.

BCuban drug companies.

CCompanies in Caribbean island countries.

DCuban farm produce companies.

AThree memory hacks to make you smarter

BHow to use study strategies more effectively

CThe potential pitfalls of study strategies

DThe reasons for ineffective learning

ARereading is an effective way of memorizing words.

BYou can enhance the efficiency of learning by reviewing regularly.

CWe should injudiciously copy the most important facts of material into our notebooks.

DIt’s better to take notes using a laptop than with a pen and paper， because writing by hand is slower than typing.

AA pond in the center.

BAroma of flowers.

CMoonlight.

DBirds’singing.

ASand boarding.

BHiking.

CParagliding.

DSurfing.

Aenforcement

Binvestigative， prosecutorial， and legislative capacities

Cgovernment cooperation

DAll of the above