[单选] The main function of tie rods in the construction of large, low speed diesel engines is to（）.

A . stiffen the bedplate in way of the main bearings to increase the engines longitudinal strength
B . accept most of the tensile loading that results from the firing forces developed during operation
C . mount the engine frame securely to the hull to prevent shaft coupling misalignment
D . connect the crosshead solidly to the piston rod

On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil by （）. banjo feed。 splash feed。 gravity feed。 pressure feed。在细胞生长过程中可以向胞外分泌可溶性色素的微生物是（）粘红酵母（Rhodotorulaglutinis）。黑曲霉（Aspergillusnige）。天蓝色链霉菌（Streptomycescoelicolor）。金黄色葡萄球菌（Staphylococcusaureus）。满堂脚手架搭设高度超过12m时，在脚手架的周边和内部纵向、横向间隔不超过（）m应设置连续竖向剪刀撑。 4。 6。 8。 10。悬挑脚手架的底层门架两侧立杆应设置纵向扫地杆，并应在脚手架的转角处、两端和中间间隔不超过（）m的底层门架上各设置一道单跨距的水平剪刀撑，剪刀撑斜杆应与门架立杆底部扣紧。 15。 12。 10。 8。（）the way from Shanghai to Japan，the ship encountered heavy weather. On。 At。 During。 I。 The main function of tie rods in the construction of large, low speed diesel engines is to（）.

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[单选] The main function of tie rods in the construction of large, low speed diesel engines is to（）.

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