高空作业时，不得把工具、器材放在工作点边缘。传递物件应当使用吊绳。严禁上下抛掷工具、器材。
参考答案：对
关于阵发性室上性心动过速的临床表现特点，不正确的是()
A.症状突然发作，突然终止
B.心率160～200次／分，节律规则
C.听诊心律整齐，心音强度一致
D.常见于无明显器质性心脏患者
E.大多有器质性心脏病病因
Which of the following describes how issuing zero-coupon bonds affects a company’s financial statements（）
A. Company net income is overstated every year until maturity.
B. Cash flow from financing increases in the year of issuance.
C. Cash flow from investing decreases in the year of maturity.
