试述数字式频谱分析仪的组成及各组成部分的作用。

题型:问答题

问题:

试述数字式频谱分析仪的组成及各组成部分的作用。

考点:注册资产评估师机电设备评估基础机电设备评估基础
题型:问答题

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。请在有错误的地方增加、删除或修改某个单词。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(﹨)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:

1. 每处错误及其修改均仅限一词;

2. 只允许修改10处,多者(从第11处起)不计分。

My cousin Tim is pupil. He is clever, and he is very naughty. Today he fails in his math and English exam. Getting his report, he was deep worried. His poor report was required to be signed by his father at home. On the way to home an idea appeared on his mind. He found his father was reading a newspaper before he got home. Tim said to his father jokingly,

“Dad, can you write your name with all of your eyes shut?” His father replied.

“Of course not, my dear.” And his father did so. Tim was satisfied with the report already signed by his father.

题型:问答题

忽必烈曾设置的机构不包括:()

A、劝农司

B、行部

C、钩考局

D、宣抚司

题型:问答题

成品堆肥散发的泥土气息是由()引起的,其酶能够帮助分解诸如树皮、报纸等一类坚硬有机物,对于诸如纤维素、木质素、角素和蛋白质等复杂有机物具有较好的分解特性。

A.放线菌

B.原生动物

C.细菌

D.真菌

题型:问答题

矫治儿童强迫症常用的方法有()

A.系统脱敏法

B.橡皮圈疗法

C.暴露疗法

D.行为中止法

E.替代法

题型:问答题

有关恶性肿瘤的治疗中,下列哪些是错误的( )

A.恶性肿瘤一旦出现转移,就不宜手术治疗

B.手术切除是唯一的治疗手段

C.各种抗癌药物对肿瘤细胞都具有选择特异性

D.软组织肉瘤很少经淋巴转移,一般不做附近淋巴结清扫

E.恶性肿瘤病人一定伴有恶病质

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