谈谈对台湾问题的思考
建于隋大业年间的（）是世界上出现最早的敞肩拱桥。 ["赵州桥","二十四桥","济桥","云玢桥"]
液位计有下列情况时，应停止使用（） ["阀件固死","防止泄漏保护装置损坏","玻璃板（管）有裂纹、破碎","液位计指示模糊不清","出现假液位","超过规定检修期限"]
下列不属于数字印刷的特点是（） ["不用软片和印版","可以联机作业","套印不容易准确","个性化印刷"]
The bigger your audience,（） complicated communication channel choice becomes. ["more","it is more","the more","the most"]
举例说明什么是开口呼、合口呼？
