把文字、符号转换为二进制码的组合逻辑电路是()
A.编码器
B.译码器
C.数据选择器
D.数据分配器
参考答案:A
Which of the following is closest in meaning to what you’ve just heard()
A.I have no doubt that she will type her paper tomorrow.
B.No one believes that she is a good typist.
C.I didn’t know she had so many pages to type tomorrow.
D.It seems that she won’t be able to complete her typing by tomorrow morning.
下列关于髌骨骨折的治疗和预后的叙述哪些正确?()
A.髌骨的作用非常重要,不能全部切除的但可部分切除
B.髌骨骨折对位良好者,预后佳,功能恢复好
C.抓髌器固定法适用于粉碎性无法复位髌骨骨折
D.骨折初期,患肢稍抬高,进行跖趾关节及踝关节跖屈、背伸活动
E.为避免伸膝装置粘连,骨折未牢固愈合前也要大幅度屈伸膝活动