下列不属于虚拟机执行过程的特点的是( )。
A.多线程
B.动态连接
C.异常处
D.代码安全检查
参考答案:D
掺入百分之几至万分之几的( ),可进一步改善或增加涂料的某些特性。
A.基料
B.溶剂
C.填料
D.助剂
She pretended to be calm but _______she was more than nervous
at the time she was being questioned.
A.in actual
B.actually
C.as matter of fact
D.in a fact