给加粗字注音。
寂寞（ ） 颤动（ ） 覆盖（ ） 冻僵（ ）
mò chàn fù jiāng
She went to the bookstore and bought ________. [ ]
A. dozen books
B. dozens books
C. dozen of books
D. dozens of books
Which is local to a thread instead of a process
A．a staCk
B．an open file
C．a semaphore
D．an address space
