引起头痛的全身性疾病是()。
A.颈椎病
B.脑肿瘤
C.三叉神经痛
D.颅内血肿
E.高血压病
参考答案:E
设置动画的开始帧应使用()。
A.StartTime
B.GrowTime
C.EndTime
D.Cyc]icGrowth
In Chomsky's theory, language competence refers to knowledge of grammar rules, while language performance refers to ______.
A. sentence patterns B. drilling practiceC. application of language D. stimulus and response