相声传统的基本艺术手段除了“说”“学”还有哪两个？
参考答案：
相声传统的基本艺术手段还有“逗”和“唱”。
骨骼肌中所含CK同工酶（）
A.主要含CK-MM，不含CK-MB，仅有少量CK-BB
B.主要含CK-MM，不含CK-BB，仅有少量CK-MB
C.主要含CK-MB，不含CK-MM，仅有少量CK-BB
D.主要含CK-MB，不含CK-BB，仅有少量CK-MM
E.主要含CK-BB，不含CK-MB，仅有少量CK-MM
---Bob looks upset. What has happened to him?
---Perhaps his failure to the exam___ his low spirits.
A．accounts for
B．looks for
C．makes for
D．takes for
