皮皮学，免费搜题
登录
搜题
【单选题】
动物的行为千奇百怪，下列动物行为中，不属于动物“语言”的是： [ ]A.
蚊叮咬人
B.
雌蛾释放性外激素
C.
狗三条腿着地，一条后腿提起到处撒尿
D.
蜜蜂的圆形舞
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】The book was written in 1946, _____ the education system has witnessed great changes.
A.
when
B.
during which
C.
since when
D.
since then
【简答题】( )是美国国家标准局公布的第一个数据加密标准,它的分组长度为位,密钥长度为56位。
【简答题】()是美国国家标准局公布的第一个数据加密标准,它的分组长度为()位,有效密钥长度为()位。
【单选题】The book was written in 1946, the education system has witnessed great charges.
A.
when
B.
during which
C.
since then
D.
since when
【单选题】The book was written in 1946, the education system has witnessed great changes. [ ]
A.
when
B.
during which
C.
since then
D.
since when
【简答题】The book was written in 1946, ___ ___ the education system has witnessed great charges. A．when B．during which C．since then D．since when
【单选题】The book was written in 1946, _______ the education system has witnessed great changes.
A.
since then
B.
when
C.
since when
D.
during which
【简答题】()是美国国家标准局公布的第一个数据加密标准，它的分组长度为()位，密钥长度为( )位。
【单选题】某企业向摩托车制造厂(增值税一般纳税人)订购摩托车10辆，支付货款(含税)共计250800元，另付设计、改装费30000元。摩托车制造厂计缴消费税的销售额是（ ）。
A.
214359元
B.
240000元
C.
250800元
D.
280800元
相关题目：