TheTonnageCertificategivesthe（）ofashipwhichisclassifiedintogrosstonnageandnettonnage.
A. specifications
B. descriptions
C. dimensions
D. prescriptions
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Deep-sealinersare（）.
A. ferries
B. passengerliners
C. cruiseships
D. oceangoingvessels
A“fifteen-pound”CO2extinguisherissocalledbecause（）.
A. therearefifteenpoundsofCOinthecontainer
B. thecontainer，whenfull，weighsfifteenpounds
C. thepressureatthedischargenozzleisl5psi
D. theemptycontainerweighsfifteenpounds
在Word中，改写选定文字大小写的快捷键是（）。
A. Shift+F3
B. Alt+Ctrl+F
C. Alt+Ctrl+U
D. Ctrl+Alt+U
撤销登记中，撤销类型下拉菜单中有哪些（）
A. 设立
B. 变更
C. 注销
D. 吊销
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