早期诊断心梗,特异性最高的是
A. CK-MM
B. CK-MB
C. LDH
D. Mb
E. 以上都不是
He gave an electrifying ____________ .
A. perform
B. performed
C. performance
D. performances
The German star put in a classy _________.
A. perform
B. performs
C. performance
D. performances
The local kids _________ at the mall.
A. hangout
B. hang out
C. hangs out
D. are hangs out