問答題

輸出流量不能協(xié)調的液壓稱為泵,可調節(jié)的液壓泵稱為泵。外嚙齒輪屬于泵

答案： ["定量","變量","定量"]

你可能感興趣的試題

冬季混凝土養(yǎng)護可根據(jù)具體情況,選用、、、等方法

答案：蓄熱法,蒸汽加熱法,電熱法,暖棚法

單項選擇題

Read the paragraph from the section "What To Do If You Come Into Contact With A Venomous C

aterpillar." Instead, grab a stick. Remove the caterpillar with it. Be careful when you do so. What information can the reader get by reading this paragraph？A．how to safely get the caterpillar offB．why touching caterpillars can hurtC．how many caterpillars are poisonousD．what different caterpillars look like