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男性,45岁。突发头痛伴恶心、呕吐1天来诊。高血压病史10年,平日血压控制在120~140/80~90mmHg。查体:右上肢血压230/120mmHg,左上肢220/110mmHg,肌力5级,双侧病理反射未引出,尿蛋白(-)。 最可能的诊断是

A. 脑出血
B. 脑血栓形成
C. 高血压脑病
D. 恶性高血压
E. 主动脉夹层

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TEXT B We all know that programming language is the system of syntax, grammar, and symbols or words used to give instructions to a computer. Because computers work with binary numbers, first-generation languages, called machine languages, required the writing of long strings of binary numbers to represent such operations as add, subtract, and compare. Later improvements allowed octal, decimal, or hexadecimal representation of binary strings. It is difficult to write error-free programs in machine language; many languages have been created to make programming easier and faster. Symbolic, or assembly, languages-- second-generation languages-- were introduced in the early 1950s. They use simple mnemonics such as "A" for add or "M" for multiply, which are translated into machine language by a computer program called an assembler. An extension of such a language is the macro instruction, a mnemonic (such as "READ" ) for which the assembler substitutes a series of simpler mnemonics. In the mid-1950s, a third generation of languages came into use. Called high-level languages because they are largely independent of the hardware, these algorithmic, or procedural, languages are designed for solving a particular type of problem. Unlike machine or symbolic languages, they vary little between computers. They must be translated into machine code by a program called a compiler or interpreter. The first such language was FORTRAN (FORmula TRANslation), developed about 1956 and best used for scientific calculation. The first commercial language, COBOL (Common Business Oriented Language), was developed about 1959. ALGOL (ALGOrithmic Language), developed in Europe about 1958, is used primarily in mathematics and science, as is APL (A Programming Language), published in 1962. PI/1 (programming Language I), developed in the late 1960s, and ADA (for Ada Augusta, countess of Lovelace, biographer of Charles Babbage), developed in 1981, are designed for both business and scientific use. For personal computers the most popular languages are BASIC (Beginners All-purpose Symbolic Instruction Code), developed in 1967 and similar to FORTRAN, and Pascal (for Blaise Pascal, who built the first successful mechanical calculator), introduced in 1971 as a teaching language. Modula 2, a Pacal-like language for commercial and mathematical applications, was introduced in 1982. The C language, introduced (1972) to implement the Unix operating system, has been extended to C ++ to deal with the rigors of object-oriented programming. Fourth-generation languages are nonprocedural. They specify what is to be accomplished without describing how. The first one, FORTH, developed in 1970, is used in scientific and industrial control applications. Most fourth-generation languages are written for specific purposes. Fifth-generation languages, which are still in infancy, are an outgrowth of artificial intelligence research. PROLOG (PRO gramming Logic) is useful for programming logical processes and making deductions automatically. Many other languages have been designed to meet specialized needs. GPSS (General Purpose System Simulator) is used for modeling physical and environmental events, and SNOBOL (String-Oriented Symbolic Language) and LISP (LISt Processing) are designed for pattern matching and list processing. LOGO, a version of LISP, was developed in the 1960s to help children learn about computers. PILOT (Programmed Instruction Learning, Or Testing) is used in writing instructional software, and Occam is a nonsequential language that optimizes the execution of a program’ s instructions in parallel processing systems. In the late 1950’ s, for the first time a computer programming language ______.

A. began using binary numbers
B. was used to implement the Unix operating system
C. was put into the market
D. was used for modeling physical and environmental events

下列程序段的输出结果是______。 int n=’c’; switch(n++) default: printf("error"); break; case’a’: case’A’: case’b’: case’B’: printf("good"); break; case’c’: case’c’: printf("pass"); case’d’: case’D’: printf("warn");

尿毒症病人伴高钾血症最有效的降血钾疗法是

A. 口服碳酸钙
B. 必需氨基酸疗法
C. 补充1,25(OH)2D3
D. 促红细胞生成素
E. 血液透析治疗

下面程序的输出是( )。 main() int t=1; fun(fun(t)); fun(int h) static int a[3]=1,2,3; int k; for(k=0; k<3; k++)a[k]+=a[k]=h; for(k=0; k<3; k++)printf("%d", a[k]); printf("\n"); return(a[h]);

A. 1,2,3,
B. 1,5,9,
C. 1,3,5,
D. 1,3,5,
E. 1,3,5,
F. 0,4,8,
G. 1,3,5,
H. -1,3,7,

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