Visitors to this plateau are likely to have a ______ headache for the first five years. A: splitting B: slapping C: slicing D: sprawling

When preparing specimen with hand-held slicing, the correct direction of cutting with the right hand blade is from the front left to the right rear.

When preparing specimen with hand-held slicing, the correct direction of cutting with the right hand blade is from the front left to the right rear. A: 正确 B: 错误

Which of the following gestures is appropriate in speechmaking?( ) A: Hand slicing to emphasize. B: Hands straigt down. C: Hands in pocket. D: Crossed arms on chest.