应力腐蚀断裂属于()
A.脆性断裂
B.韧性断裂
C.塑性断裂
参考答案:A
脑卒中后康复分期包括()。
A.恢复期、后遗症期
B.早期、后期
C.急救期、早期、恢复期
D.早期、恢复期、后遗症期
E.急性期、早期、后遗症期
Don't ___ _ loudly in the classroom. [ ]
A. talk
B. talks
C. talking
D. to talk