If the carbon content of a type of steel is 0.1%， this steel is a kind of （ ）. A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel

are very soft ,and can be used for bolts and for machine parts that do not need strength.: Alloy steels|High carbon steels|Low carbon steels|Medium carbon steels

If the carbon content of a type of steel is 0.1%, this steel is a kind of (). A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel E: 2-1-1 F: 章测

The medium used when cultivating mycoplasma belongs to (). A: Basic medium B: Selection medium C: Differential medium D: Enriched medium

The composition of a culture medium are peptone 5.0g/L, beef extract 3.0g/L. Which type is this medium classified? A: defined medium B: complex medium C: solid medium D: differential medium

According to the purpose of the medium, the basic medium commonly used to cultivate actinomycetes is (). A: Potato Sucrose Medium B: Beef extract peptone medium C: Gao's Medium One D: Martin-Bengal medium

Based on the purpose of the medium, which of the following is the basal medium for culturing actinomycetes? ( ) A: Potato sucrose medium B: Beef extract peptone medium C: Gauze's medium No. 1 D: Martin-Bengal Medium

the general selective medium of Bacterium entericum A: Lowensteinmedium B: SS medium C: Sabouraud medium D: Korthof medium

The culture medium used for mycoplasma belongs to ( ) A: Basal medium B: Selective medium C: Differential media D: Enriched medium

牛排“三分熟，全熟”的表达分别是： A: medium rare; well done B: rare; medium C: medium; well done D: medium rare; medium