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NBC also called National Broadcasting Network, is one of the three major radio and television networks in the USA.()
A.错误
B.正确
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A.错误
B.正确
()Summer Resort is also called "Mountain Hamlet for Escaping the Heat".
A. Beidaihe
B. Chengde
C. Beijing
D. Hangzhou
B.e-tailer
C.catalog merchant
D.Bit vendor
A. a direct model
B. e-tailer
C. catalog merchant
D. Bit vendor
A.Beidaihe
B.Chengde
C.Beijing
D.Hangzhou
Inert gases can also be called ______.
A) Noble gases
B) Active
C) Group 5 elements
D) Stable
A.Application B.System C.Compiler D.Utility
The following statement ofinert gases is right except______
A) Inert gases are also called noble gases
B) Inert gases are mostlyinactive
C) Inert gases do not get involved in making compounds with other elements
D) Inert gases have their outer energy levels incompletely full ofvalence electrons
The diesel engine is also called compression ignition engine because______.
A compression stroke is one of the four-strokes of a diesel engine.
B the diesel engine is ignited by the heat of compression not by spark .
C the diesel engine has a very high compression ratio.
D Both A and B