90.5×99+90.5．_爱下问搜题

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问题解答题

90.5×99+90.5．

答案

90.5×99+90.5，

=90.5×99+90.5×1，

=90.5×（99+1），

=90.5×100，

=9050．

单项选择题 A1/A2型题

关于颈部CT增强扫描技术，叙述错误的是（）

A.增强扫描协助对占位性病变的定位和定性

B.选择层厚3～5mm，层间距3～5mm的薄层扫描

C.对比剂用量60～80ml

D.静脉注射的流速2.5～3ml/s

E.延迟扫描时间50s

完形填空

Like most people, I was brought up to look upon life as a process of getting. It was not until in my late thirties that I made this important     : giving-away makes life so much more exciting. You needn’t worry if you       money.
This is how I     with giving-away. If an idea for improving the window display of a neighborhood store     in my mind, I step in and make the     to the storekeeper. If an accident takes place, the     of which I think the local police could use, I     him up and tell him about it, though I am not in    here. I found a rule about this world is to give     getting something back, though the    often comes in an unexpected form.
One Sunday morning the local post office delivered an important special letter to my home, though it was     to me at my office. I wrote the postmaster a note of     . More than a year later I needed a post-office box for a new business I was     . I was told at the window that there were     boxes left, and that my name would have to go on a long     list. As I was about to be      , the postmaster appeared in the    . “Wasn’t it you that wrote us that letter a year ago about delivering an      delivery to your home?” I said it was. “Well, you certainly are going to have a box in this post office     we make one specifically for you. You don’t know what a letter like that means to us. We usually get     but complaints.”

A．experienced

D．experimented

D．appreciation

C．discouraged