关于形式发票，下列说法正确的是（）。 ["形式发票不是一种正式发票","形式发票能用于托收和议付，其正式成效后不用另外再繕制商业发票","形式发票与商业发票的关系密切，信用证在货物描述后面常有“按照某月某日之形式发票”等条款","假如来证附有形式发票，则形式发票构成信用证的组成部分，制单时要按形式发票内容全部填写在商业发票上"]
成词语素
企业在投资时，要注意投资收益与投资（）均衡。 ["成本","风险","时间","步骤"]
常见的枪弹创伤为哪几种类型？
Study this exhibit carefully. What information can be derived from the SDM firewall configurationdisplayed？（） ["Access-list 101 was configured for the trusted interface， and access-list 100 was configured forthe untrusted interface","Access-list 100 was configured for the trusted interface， and access-list 101 was configured forthe untrusted interface","Access-list 100 was configured for the inbound direction， and access-list 101 was configured forthe outbound direction on the trusted interface","Access-list 100 was configured for the inbound direction， and access-list 101 was configured forthe outbound direction on the untrusted interface"]
地下水现场监测项目有哪些?
