教学大纲和教科书的内容编排通常采用直线式和 ________两种形式。
参考答案：螺旋式
(2013·甘肃诊断测试)Your cousin is said ________ a new computer program recently, but do you know when he will finish it?
A．to design
B．designing
C．to have been designing
D．to have designed
He has impressed his employers considerably and _____ he is soon to be promoted.
A．eventually
B．yet
C．finally
D．accordingly
