颅内血肿的常见类型是
A.脑内血肿
B.硬脑膜下血肿
C.硬脑膜外血肿
D.骨膜下血肿
E.因后壁血肿
参考答案:A,B,C
— I want to send this letter. Is there a ______ near here?
— Yes, there is one behind the Sky Hotel. [ ]
A. bank
B. cinema
C. post office
D. middle school
如图所示,用一根细绳和一根轻直杆组成三角支架,绳的一端绕在手指上,杆的一端顶在掌心,当A处挂上重物时,绳与杆对手指和手掌均有作用,对这两个作用力的方向判断完全正确的是图中的
A.
B.
C.
D.