职称英语考试

【单选题】 The boy felt frustrated when he found he had difficulty with most of the math's problems.
A．proud of himself
B．discouraged
C．scared
D．encouraged

网考网参考答案：B
网考网解析：
[直接定位] frustrated意为“沮丧的，灰心丧气的”，与discouraged同义。 查看试题解析出处>>