a = 20 b = 10 c = 15 d = 5 e = 0[br][/br] 分别计算e的值:[br][/br] (1)e = (a + b) * c / d [br][/br] (2)e = ((a + b) * c) / d [br][/br] (3)e = (a + b) * (c / d) [br][/br] (4)e = a + (b * c) / d
举一反三
- 以下代码将显示什么?[br][/br]x = 1[br][/br]x = 2 * x + 1 [br][/br] print(x) A: 3 B: 0 C: 1 D: 2 E: 4
- 写出执行以下代码后C,D,E的值[br][/br]A=[1,2,3;4:6;7:9];[br][/br]C=[A;[10,11,12]],[br][/br]D=C(1:3,[23])[br][/br]E=C(2,[12])
- How long should the ultrasound surveillance be taken for the hemangiomas?( ) A: 1<br/>month B: 2<br/>months C: 3<br/>to 6 months D: 4<br/>months E: 5<br/>months
- 设a=3,b=5,c=-1,d=7,求下列逻辑表达式的值[br][/br]1)(a-b)>c*d&&!(c>0)||d>b[br][/br]2)a*d/(c*-a)>d%c||c>=d[br][/br]3)(c+d)c[br][/br]4)a-b>=c&&b-a>=d
- 以下语句的作用是( )[br][/br] try: 语句体1[br][/br] except ... as e:[br][/br] 语句体2[br][/br] except ... as e:[br][/br] 语句体3[br][/br] except ... as e:[br][/br] 语句体4[br][/br] else:[br][/br] 语句体5 A: 捕获“语句体1”的语法错误 B: 处理“语句体1”所有的异常 C: 处理“语句体1”逻辑错误 D: 处理“语句体1”多个异常