【单选题】The goal of generating the IC (intermediate codes) in compiler is ( ).
A.
convenient for organization and optimization the storage
B.
convenient for code optimization and porting the compiler
C.
convenient for source code optimization
D.
convenient for advancing the target code quality
【简答题】P-InP/I-GaAs/N-InP双异质结结构光电二极管的主要优点是什么?
【简答题】A.the author B.the author's C.the compiler D.the compiler's
【判断题】要是数码管显示数字,有两个条件: 1 、是要在 VT 端( 3/8 脚)加正电源; 2 、要使( a,b,c,d,e,f,g,dp) 端接低电平或 “0” 电平
【单选题】遇见长辈李先生,你应该向他致意。以下哪种说法不正确 _____. [ ]
A.
How are you? Hello! Mr Li.
B.
Hello! Mr Li. How are you ?
D.
Hello! MrLi, Good morning.
【单选题】以下关于MR现象,描述错误的是:
B.
1946年美国科学家在水与石蜡中发现了MR现象
C.
1952年美国科学家以MR现象获得了诺贝尔物理学奖
D.
MR现象最初应用于研究物质的分子结构并产生了磁共振波谱学
【简答题】A.gatherer B.translator C.generator D.compiler
【单选题】A compiler directive is...
A.
A prompt printed on the screen for the user.
B.
Ignored by the compiler.
C.
An instruction to be executed by the compiler before it translates the program.
E.
An instruction to be executed when the program runs.