In a married falls rig at the after end of a hatch , a boom is rigged in a fore and aft line through its heel . Stresses on the outboard guy will be least if the guy is made fast at a point().
A. abreast the heel
B. at right angles to the boom when viewed from above
C. aft of the heel
D. forward of the spiderband
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色素性紫癜性皮肤病皮损最常见于()
A. 胫前区
B. 大腿屈侧
C. 上臂伸侧
D. 躯干
E. 腰部
账户交易明细可以通过()交易查询。
A. 000400
B. 000450
C. 029168
D. 062001
下面有关髓内肿瘤的临床表现中哪项是错误的()
A. 很少会出现根痛
B. 感觉障碍自下而上发展,有感觉分离现象
C. 很少会出现脊髓半横切综合征
D. 有广泛而明显的下运动神经元瘫痪,伴肌萎缩
E. 括约肌功能障碍出现比较早