问题
选择题
Stress can be extremely damaging to your health. Exercise, __________, can reduce its effects.
A．at the same time
B．while
C．though
D．meanwhile
答案
答案：D
考查连词。at the same time同时； while然而；though尽管；meanwhile与此同时。句意：紧张可能非常损害你的健康，与此同时，也能减少它的影响。
