でんわを　したいのですが、(　)　おかねが　ありません。A．ちいさい B．すくない

在航道图上进行海图作业时，宜用（）软铅笔和软橡皮轻写轻擦。

A、2B

B、3B

C、2H

D、HB

Only when ______ the data again ______ that there was a mistake. [ ]

A. they had studied; did they realize

B. they had studied; realized they

C. had they studied; did they realize

D. had they studied; realized they

下述哪些实验室检查有助于传染性单核细胞增多症的诊断（）

A.血常规检查发现异常淋巴细胞增多10%

B.异凝集试验1：64阳性

C.尿常规发现蛋白尿

D.EBV抗体检查阳性

E.EBV-DNA检测阳性

企业必须在设备、设施上设置明显标志，表明治理责任、期限及应急措施。

在技术改造过程中施工管理时应注意什么？