A country has a current account __________ if it is saving more than it is investing domestically. A: surplus B: deficit C: balance D: unbalance

What are the major threats to human health? A: Smoking and drinking alcohol can greatly affect human health. B: Keeping an unbalance diet can cause healthy problems. C: Depression, anxiety, pressure and other worries can lead to healthy problems. D: air pollution & traffic accidents are also threats to human health.