In an ecosystem, plants play a crucial role in maintaining ecological balance. Which of the following functions do plants perform? A. producing oxygen B. absorbing carbon dioxide C. providing food and shelter for animals D. all of the above ...
A computer is a machine designed to perform work mathematically and to store and select information that has been fed into it. It is run by either mechanical or electronic means. These machines can do a great deal of complicated work in a very short time. A large computer, for example, ...
Select the correct answer. Which of the following elements makes up the majority of Earth's atmosphere? a. Oxygen b. Hydrogen c. Argon d. Nitrogen Elements in the atmosphere Although the Earth's atmosphere contains a lot of nitroge...
35.Which of the following can be the best title for the text? A.Can we grow more glowing plants? B.How do we live with glowing plants? C.Could glowing plants replace lamps? D.How are glowing plants made pollution-free? 【分值】2分 【答案】C 第二节(共5小题;每小题2分,满分10分)...
Which of the following does a prokaryotic cell have that an animal cell does not? a. Ribosomes. b. Cell wall. c. Vacuole. d. DNA. Cell Organelles: A cell is a structure that is found in both plants and animals. A cell can be...
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a大型比赛 Large-scale competition[translate] a你他妈是傻子? Your his mother is the fool?[translate] a情薄义凉 Sentiment thin righteousness cool[translate] awhich of the following is the best title for the passage ? 最佳的标题是哪些以下为段落?[translate]...
(三)[对] 1、职业道德通过公约、守则等对职业生活中的某些方面加以规范。分)正确答案:对 2、高炉煤气在管网系统中排水器水封有效高度为系统煤气压力的2倍。分)正确答案:对 3、文氏管是由收缩管、喉管、扩张管三部分组成,其主要作用为除尘、降温。分)正确答案:对 4、焦炉煤气燃烧时,由于氢气含量高,火焰透...
Bill, for instance, often gets painful flashbacks, in which unwanted memories intrude into his consciousness, but overall he has chosen to see it as the best way of avoiding repeating the same mistakes. 出自-2017年6月阅读原文 Apart from the specific trends highlighted above, which cause some ...
To solve the question regarding which type of cells can differentiate to perform different functions, we will analyze each of the provided options step by step.Step 1: Understand the Types of Cells We have four types of cells t