单项选择题 1.5-9 写出下面程序的输出结果(   ) main() {int x=4,y=0,z; x*=3+2;printf("%d" ,x); x *= (y == (z = 4));printf("%d" ,x); } A、14  40 B、20  0 C、20  4 D、144

单项选择题 关于各种沟通工具的使用建议，下列说法不正确的是（）A. 如果在同一个办公环境中，应尽量采用面谈+邮件沟通组合B. 点对点沟通应尽量采用电话+邮件沟通组合C. 工作通信可以全部由即时通信工具完成，因为这样最为便捷D. 十分重要的项目且条件允许的情况下，应尽量采用面谈沟通+电话跟进+邮件备忘的沟通工具组合

单项选择题 Which statements about ‘non-use of force’ is NOT correct? A、Prohibition of the resort to war is a valid principle of international law. B、States shall resolve their disputes peacefully. C、Resort to force in self-defense also constitute a commonly recognized principle of international law. D、It is only binding on states who are members of the UN.