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【单选题】
He sat in the classroom with his eyes _____ on the blackboard. [ ]A.
fixed
B.
fixing
C.
were fixed
D.
were fixing
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【单选题】若所使用运行环境char型空间是1个字节,int型是4个字节,float型是4字节,double型是8字节,以下程序段的输出是 。 union { double a; int b; char c; }m; printf(“%d”, sizeof(m) );
A.
4
B.
8
C.
2
D.
1
【单选题】上中学的时候,很多学生靠死记硬背就能得高分,但大学的课程真正深入各个学科领域,如果不能理解教材内容,将很难取得进步。
A.
In high school, many students do well just by memorizing facts, but college classes really go into their subjects, and if you don’t understand the material, it will be difficult to progress.
B.
In high school, many students do well just by remembering, but college classes really go into their areas, and if you don’t understand, it will be difficult to progress.
C.
In high school, many students get high marks just by memorizing, but you should study hard, and if you don’t understand, it won’t to progress.
【单选题】若所使用运行环境char型空间是1个字节,int型是2个字节,double型是8字节。若有如下定义: struct data { int i; char ch; double f; }b; 则结构变量b占用内存的字节数是 。
A.
1
B.
2
C.
8
D.
11
【单选题】某人患急性哮喘，皮下给予肾上腺素，肾上腺素是通过如下何种受体发挥舒张支气管平滑肌作用的
A.
α 肾上腺素受体
B.
α 肾上腺素受体
C.
β 肾上腺素受体
D.
β 肾上腺素受体
E.
M 胆碱受体
【单选题】慢性支气管炎合并哮喘发作，处理措施不正确的是
A.
静脉注射肾上腺皮质激素
B.
沙丁胺醇雾化吸入
C.
氨茶碱静脉注射或滴注
D.
应用β受体阻滞药
E.
应用β受体激动药
【单选题】若所使用运行环境char型空间是1个字节,int型是2个字节。若有如下定义: union data { int i; char ch[10]; int f; }b; 则共用体变量b占用内存的字节数是 。
A.
2
B.
4
C.
10
D.
8
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