拌制混凝土时不要控制水灰比；拌合要均匀；颜色一致.
参考答案：错
The nurse is caring for an elderly female with osteoporosis. When teaching the client, the nurse should include information about which major complication ？（）
A．Bone fracture.
B．Loss of estrogen.
C．Negative calcium balance.
D．Dowager's hump.
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