Which part of the United States was attacked by snowstorm A: The north-eastern part. B: The south-eastern part. C: The north-western part. D: The south-western part.

Which part of the United States was attacked by snowstorm A: The north-eastern part. B: The south-eastern part. C: The north-western part.

The cylinders and pistons are in the ______ the cylinder block and the crankshaft is in the lower part. A: left part of B: upper part of C: right part of D: bottom part of

Prosthesis is an artificial body part that is used to replace a natural part.

Part III (paras.8-11)Please summarize the main idea of this part.

The cylinders and pistons are in the upper part of the cylinder block and the crankshaft is in the lower part.

中国大学MOOC:"The findings in the Results part should be used to answer the research questions proposed in the introduction part.";

If bright part is F11 and dark part is F8 metered by light metering, there is one aperture between the bright part and dark part. The light ratio between the bright part and the dark part is ______. A: 2:1 B: 4:1 C: 1:4 D: 1:2

中国大学MOOC: In general, each electrical machine has a nonmoving part and a moving part. We can replace the adjective “nonmoving” with （ ）

中国大学MOOC:"Usually in the ending part of a speech, speakers would choose to refer back to the lead-in part. What are the benefit(s) of doing that?";