中发［1997］11号文件规定，集体所有的各种荒地，可以以拍卖、租赁使用权等方式进行非农业建设。()
参考答案：错
The nurse is caring for a client who recently underwent a tracheostomy. The first priority when caring for a client with a tracheostomy is（）
A. helping him communicate.
B. keeping his airway patent.
C. encouraging him to perform activities of daily living.
D. preventing him from developing an infection.
大量研究证实，婴儿具备比较明显的问题解决能力是在（）
A、3个月
B、6个月
C、8个月
D、10个月
