骨关节炎的典型体征是()
A.方形手畸形
B.手钮扣花畸形
C.关节梭形肿胀
D.关节红、肿,活动受限
E.第一跖趾关节红、肿、热、痛
参考答案:A
____ in1943 _____ the harmful smog made its appearance in Los Angeles. [ ]
A. Only; that
B. It was;then
C. That is was; when
D. It was; that
简述我国数罪并罚的原则。