Yes: Influenza b virus is a respiratory virus spread by coughing, etc. The two main types of influenza occurring during flu season are influenza a and influenza b. Influenza b often causes more GI symptoms.
Excavators are vehicles that are used on construction sites to move material. 1  slide 1 of 2. Excavators: Also Known as Diggers and Backhoes An excavator uses hydraulics or a wire rope pulley system to dig holes or trenches and is, therefore, often called a digger. 2  slide 2 of 2. Examples of Excavators.
There are six main kinds of earth moving equipment on the market and it helps to be clear on the features and purpose of each so you can make the best choice when it comes to using heavy machinery. Excavators can be utilised over wheels or treads and are used most often to shovel dirt or lift heavy pieces of machinery.