皮皮学,免费搜题
登录
搜题
【单选题】
在X线摄影中滤线栅的作用是
A.
消除散射线
B.
吸收散射线
C.
产生散射线
D.
抑制散射线
E.
与散射线无关
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】What might be mentioned in Frans de Waal's book?
A.
His attitude to people's understandings of Darwinism.
B.
His staying together with Jenny day after day.
C.
His strong support for Machiavellian.
D.
His working experience with Kant.
【单选题】下列哪一项不属于处理施工中建筑倒塌事故的措施?()
A.
清理倒塌建筑边缘部位的建筑材料、施工机械和其他堆放物品,建立抢险救援平台和救援车辆通道,开展救援行动
B.
调用市政部门的大型铲车、吊车、推土机、运输车等机械设备,对建筑倒塌堆垛边清理、边搜寻人员
C.
救援受出入口影响,加之空间有限,难以使用大型挖掘、起吊装备,应使用破拆、切割、撑顶等装备进行施救
D.
对救出的受伤人员,以医疗急救部门为主实施现场急救,伤情较重的应立即送往医院进行救治
【简答题】数控车床的刀具功能字T既指定了(),又指定了()。
【简答题】因调车作业超速连挂和“禁溜车”溜放等造成货物装载加固状态破坏而引发的事故,定()责任。
【判断题】因调车作业超速连挂和“禁溜车”溜放等造成货物装载加固状态破坏而引发的事故,定车站责任。(B)
A.
正确
B.
错误
【简答题】When looking up at the starry sky, we are full of ____ for the vast universe. (long) 2.The most important thing for her now is to maintain a good ___ and good eating habits. (mental) 3.The scandal wo...
【多选题】关于PN结的雪崩击穿和齐纳击穿下面表述正确的是()
A.
在给PN结施加的反向电压由0逐步增大时,首先发生的是齐纳击穿,电压足够大时发生雪崩击穿
B.
在给PN结施加的反向电压由0逐步增大时,首先发生的是雪崩击穿,电压足够大时发生齐纳击穿
C.
发生雪崩击穿时,不发生齐纳击穿
D.
发生雪崩击穿时,齐纳击穿仍然发生
【简答题】1 The ______ student fell asleep during the ______ lecture. (boring, bored) 2 The ______ children can make other people feel ______ in them. (interesting, interested) 3 I heard some ______ news on the...
【简答题】The scandal _______ the resignation (辞职) of the President.
【简答题】Fillin the blanks with the phrases that you just learned. 1. This information _____ the problem. 2. He thought of his retirement day as _____. 3. Apolitical scandal has recently_____. 4. He had come t...
相关题目: