掘进工作面接近积水区域或遇可疑地点时，必须坚持（）、（）、（）的原则。
参考答案：有疑必探；先探后掘；边探边掘
A client with chronic obstructive pulmonary disease (COPD) and cor pulmonale is being prepared for discharge. The nurse should provide which instructions
A．"Weigh yourself daily and report a loss of 1 lb in 1 day. "
B．"Eat a high-sodium diet. "
C．"Weigh yourself daily and report a gain of 2 lb in 1 day. "
D．"Maintain bedrest. "
教师组织研究性学习的能力包括哪些能力？
