皮皮学，免费搜题
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【单选题】
CO2焊用的CO2气体纯度，一般要求不低于（）A.
99.5%
B.
99.9%
C.
99.95%
D.
99.99%
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】He pretended to be English, but his foreign accent ________.
A.
threw him away
B.
put him away
C.
gave him away
D.
carried him away
【单选题】I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .
A.
sing; singing
B.
singing; sing
C.
singing; singing
D.
sing; sing
【简答题】_______, the bookseller gave him something else as a present. A. To the boy's delight B. To the boy's surprising C. To the boy joy D. To make the boy's happy
【简答题】是组成植物体的最小基本单位,细胞构成组织,组织构成器官,器官构成植物体。
【单选题】Which of the following statements about the UK charts is false?
A.
All of the charts are published on Friday nights.
B.
There are both weekly charts and monthly charts.
C.
The Official Charts Company compiles various "official" UK record charts.
D.
There are many different charts, such as the Official Singles Chart, Official Albums Chart, Official Compilations Chart, etc.
【单选题】_____________is a comprehensive reference in graphical and textual form of all Admiralty Charts and Publications worldwide (link to Admiralty Charts) listed by region.
A.
Ocean Passages for the World (NP136)
B.
Symbols and Abbreviations used on Admiralty Charts, Chart 5011
C.
IALA Maritime Buoyage System (NP735)
D.
Catalogue of Admiralty Charts and Publications (NP131)
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