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【判断题】
滴定分析法按照反应类型不同可以分为酸碱滴定、配位滴定、氧化还原滴定和沉淀滴定。A.
正确
B.
错误
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【单选题】Assume a system has a TLB hit ratio of 90%. It requires 15 nanoseconds to access the TLB, and 85 nanoseconds to access main memory. What is the effective memory access time in nanoseconds for this sys...
A.
108
B.
100
C.
22
D.
176
【单选题】Questions 22 and 25 will be based on theconversation you have just heard. 22. What is the main topic of the talk?
A.
Characteristics of sand.
B.
How animals live in the desert.
C.
A snake’s special way of moving.
D.
Techniques of skiing.
【简答题】Role Play In the following short dialogue, two people are talking about a job, but the sentences are completely disorganized. Put the following sentences into good order. The first sentence has been d...
【简答题】听下面一段材料，回答第1-3题。 1. Where is the man? A. In New York. B. In Beijing. C. In France. 2.What is the main purpose of the man’s coming visit? A. To be on holiday. B. To see the woman. C. To attend a meetin...
【单选题】火星是太阳系八大行星之一，是太阳系由内往外数的第四颗行星，属于类地行星。直径约为地球的一半，天文学中把地球与火星称为兄弟行星。下列有关火星的表述不正确的是（）。
A.
二氧化碳为主的大气既稀薄又寒冷，沙尘悬浮其中，每年常有尘暴发生
B.
与地球相比，地质活动较很活跃，地表地貌大部分于最近形成，有密布的陨石坑、峡谷
C.
在西方被称为战神，这是由于它鲜红的颜色而得来的，所以火星有时被称为“红色行星”
D.
火星平均温度为-23℃，大气稀薄而干燥，所以昼夜温差大，远远大于地球上的昼夜温差
【简答题】请听下面一段材料，回答第1-3题。 1. Where is the man? A. In New York. B. In Beijing. C. In France. 2. What is the main purpose of the man’s coming visit? A. To be on holiday. B. To see the woman. C. To attend a meet...
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