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【单选题】
头孢菌素类药物的基本结构是A.
6-ACA
B.
7-APA
C.
7-ADA
D.
6-ABA
E.
7-ABA
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反馈参考答案：
举一反三
【单选题】What do the content of Instruction register specify?
A.
Operand of the instruction being executed
B.
Op-code of the instruction being executed
C.
Op-code of the instruction to be executed next
D.
Operand of the instruction to be executed next
【单选题】In the following Java statement what value is stored in the variable name? String name = "John Doe";
A.
John Doe
B.
The memory address where "John Doe" is located
C.
name
D.
The memory address where name is located
【单选题】what does The label in the assembly instruction refer to
A.
Variable address in memory
B.
Instruction address
C.
What to do
D.
Object of the instruction
【单选题】what type of instruction is the instruction jal ()
A.
Type I
B.
Type J
C.
Type R
D.
Not sure
【单选题】What is wrong with the following statement about the instruction system
A.
An instruction system is a set of instructions that a machine's hardware can execute
B.
Any program must be converted to machine language before it can be run
C.
The instruction system is the intece of computer software and hardware
D.
The instruction system is independent of the machine language
【单选题】What ________ the weather ________? [ ]
A.
is; look like
B.
doe; like
C.
is; like
D.
are; like
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