How did the South Korean Foreign Minister feel about the current talks
A. upset
B. pessimistic
C. optimistic
D. confused
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根据工地的气候、地形、土质等选择施工机械，体现了施工机械选择的( )原则。
A. 适应性
B. 先进性
C. 经济性
D. 通用性
The main idea of this passage is ______.
A. traffic accidents are mainly caused by motorists
B. thousands of people the world over are killed each year
C. the laws of some countries about driving are too lax
D. only stricter traffic laws can prevent accidents
患者从事蓄电池生产多年，主诉头晕、无力、肌肉酸痛、记忆力减退，时有便秘、腹部绞痛。体检发现舌、手指及眼睑均有轻度震颤，皮肤划痕阳性，牙龈可见暗蓝色线影，你认为此系何种中毒
A. 急性汞中毒
B. 性铅中毒
C. 慢性汞中毒
D. 慢性铅中毒
E. 慢性苯中毒
教育质的规定性是指教育的( )。
A. 一般性
B. 特殊性
C. 目的性
D. 方向性
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