皮皮学，免费搜题
登录
搜题
【单选题】
关于生物变异的说法，正确的是A.
变异现象普遍存在
B.
变异都没有遗传物质的改变
C.
凡是变异都可遗传
D.
变异对生物的生存都是有利的
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He suddenly became _____ that he was the only man who wasn't wearing a suit at the party.
A.
conscious
B.
relaxed
C.
committed
D.
infected
【单选题】He suddenly became _______ that he was the only man who wasn’t wearing a suit at the party.
A.
conscious
B.
consciousness
C.
constant
D.
consumption
【简答题】中国要积极同美国发展()关系。 A战略合作 B伙伴 C新型大国 D全面战略协作伙伴
【单选题】听力原文：M: Come in, Rachel. F: Thanks. M: Right. We need to discuss some of the issues raised at the last meeting with your department. F: Yes, there were a lot of questions about computer systems and fl...
A.
Computer systems.
B.
Flexible working hours.
C.
Staff performance.
【单选题】When you meet acquaintances in public places, you should raise your ( )hand to greet and nod.
A.
right
B.
left
C.
own
D.
both
【多选题】GB50203-2011主要技术内容包括：总则、术语、基本规定、砌筑砂浆、砖砌体工程、（）、石砌体工程、配筋砌体工程、填充墙砌体工程、冬期施工。
A.
混凝土小型空心砌块
B.
砌体工程
C.
混凝土小型砌块
D.
子分部工程验收
相关题目：