题目:
多项式3x﹣1+6x2+4x3是( )次( )项式,其中常数项是( ),按x的降幂排列是( ).
答案:
三;四;﹣1;4x3+6x2+3x﹣1
多项式3x﹣1+6x2+4x3是( )次( )项式,其中常数项是( ),按x的降幂排列是( ).
三;四;﹣1;4x3+6x2+3x﹣1
中药性味是药物性能的重要标志,药性,主要是寒热温凉四种,古时称为四气。五味指辛甘酸苦咸,不同的滋味与医疗作用之间有一定的内在联系。
性味苦寒的药物大多具有()
A.祛风除湿作用
B.芳香化湿作用
C.清热燥湿作用
D.利水渗温作用
E.祛除寒湿作用
完形填空 | ||||
"It's my own fault." Carl Fenter pulled his jacket closer against the abnormal bite of cold morning wind. "The rest of the family is home, where it's__1__." Just another one of his__2__ideas-a big tamale (玉米粉蒸肉) feast after tonight's Christmas Eve service at the church-and look where it landed him:waiting in a line 50 people deep. Who would have guessed that the tamale in every shop in the city would be sold out the day before Christmas?But they__3__, as Carl knew.He had been driving all over El Paso that morning.__4__to bring home tamales, Carl tried one last shop, an old favorite out in Canutillo. When he arrived, a fresh batch (一炉) was__5__off the steamer in 45 minutes.__6__at the end of the snaking line of tamaleseekers, he watched the woman in front of him__7__her jacket to cover her shivering youngster.It wasn't long before she, too, __8__in the biting wind.After only a moment's__9__, Carl took off his own jacket and offered it to the__10__mother. Together, they__11__when the line slowly moved forward at last, and smiling people exited the shop carrying steamy bags.__12__, Carl got inside the door and__13__closer to the counter, the woman now first in line."Sorry folks, " the clerk announced, "that's the last of the tamales.""__14__!" Carl groaned (抱怨) with everyone else__15__behind him. "__16__, "stressed the man at the counter, "we'll have a final batch ready__17__, oh, about two hours." Defeated, Carl backed away, but the young mother grabbed his arm. "You're leaving?" "I__18__, "Carl glanced at his watch."I promised to put up luminarias (传统圣诞灯) at my church." "I'll get your order of tamales and bring them to your house." Carl's brow furrowed "I couldn't ask you to do that." "But it's__19__I can do.You lent me your coat." Her smile overrode (推翻) his objections."Just give me your address." She and her little girl settled in for the long wait. And at__20__noon on Christmas Eve, they delivered four dozen fragrant tamales-along with Carl's brown jacket-to his home. | ||||
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车体落成后,KZW-4型空重车自动调整装置横跨梁组装螺栓垂直移动量为((P65等型车为1~3mm),须安装开口销。
A、1~3mm
B、2~4mm
C、3~51mm
D、4~7mm
企业标准体系包含了企业的全部标准,按照各类标准的功能、作用,()等三类标准反应企业标准体系总框架。
A.管理标准
B.通用技术
C.工作标准
D.专用技术
()方向一般不设编发线。