进行性肌营养不良患者何种酶显著升高（）。
A.LDH
B.ALP
C.CK
D.ACP
E.ALT
参考答案：B
Kangkang is asking Mr. Lee _____ about Shenzhou VI. [ ]
A. that he will tell him something
B. when will he tell him something
C. if he will tell him something
D. to speak something
皮带输送机下部托辊积料时该（）清理。
A、逆着皮带方向敲击底部托辊积料
B、顺着皮带方向敲击底部托辊积料
C、无所谓
