How long had the professor read the paper when two wrong men arrived?
A. One hour and a half
B. One hour
C. Half an hour
查看答案
How didthe professor know that these two people are not the right people?
A. The two men arrived in the professor’s room earlier.
B. The two men claimed that they knew the professor’s invention.
C. The two men did not show their cards to the professor.
The professor finally decided ________ would send the paper to London?
A. His secretary
B. The professor himself
C. Inspector Hadley
Please put the following sentences in the right order according to the development of the story.
填土施工影响密实度的主要因素是压实功、土的含水量和每层铺土厚度。(分层填土压实和回填土含水量以及夯实的方法都会产生影响。)
A. 对
B. 错