Which compounds can function as N-source? A: NH4+ B: NO3- C: Urea (CH4N2O) D: All of the above

Communication is a(n) _________ by which a source transmits a message to a receiver through some channel.

In exploring data for a research proposal, sources can be divided into ____________.primary A: primary source and secondary source B: first source and second source C: direct source and indirect source D: main source and minor source

Communication is the process of transmitting a message from a(n)____ to an audience via a channel. A: root B: resource C: origin D: source

Communications is the process of transmitting a message from a(n) to an audience via a channel. A: root B: resource C: origin D: source

Communication is a（n） _________ by which a source transmits a message to a receiver through some channel。 A: transaction B: activity C: action D: process

The annotation of a source in an annotated bibliography may have your____:( ) A: assessment of the source B: reflection of the source C: adaptation of the source D: summary of the source

A(n)（ ）translates all the source code of a program written in a high-level language into object code prior to the execution of th program. A: interprete B: assemblers C: compile

给出如下代码s = 'Python is Open Source!' print(s[0:].upper()) A: PYTHON B: PYTHON IS OPEN SOURCE C: Python is Open Source! D: PYTHON IS OPEN SOURCE!

As the natural process of creation of life, Heaven was the source of _______ and the source of ________. This was the “virtue of Heaven.”