关于地方时，以下说法哪一种是正确的（）。

This will be a surveillance radar approach runway 18, terminating at half mile from touchdown, OCA 500ft, check your （ ） .

This will be a surveillance radar approach runway 34, （ ） at half mile from touchdown, OCA 600ft, check your minima.

This will be a （ ） approach runway 27, terminating at 2 miles from touchdown, OCA 400ft, maintain 2200 ft, check your minima.

—TWA345, perform （ ） now. —TWA345, check wheels down and locked.

PIA345, Approach, 6 miles from touchdown, （ ） descent now to maintain a 3 degree glide path.

TWA320, turn right heading 180, no ATC speed （ ） .

CCA385, radar contact, 20 miles south of airport, turn right heading 120, （ ） to the final approach course.

CSN301, not identified, resume own （ ） to CH.

BAW157, radar service （ ） , resume own navigation, direct VKY.

—LHT squawk 6432. —Squawking 6432, LHT. —LHT, （ ） , 15 miles south of airport, maintain present heading and level.