搜题请搜索小程序“爱下问搜题”
问题 单项选择题

采用敞口式（手掘式）顶管机时，应将地下水位降至管底以下不小于（）处，并应采取措施，防止其他水源进入顶管的管道。

A.1.0m

B.0.3m

C.0.5m

D.0.2m

答案

参考答案：C

填空题


Questions 16-22
· Look at the notes about an enterprise.
· Some information is missing.
· You will hear part of a presentation by the International Manager of the company.
· For each question, fill in the missing information in the numbered space, using one or two words.
· You will hear the presentation twice.

Honeybee Foods Corporation
Honeybee started originally as (16) an ______ parlor
The company’s name came from(17) TTC’ s vision of employees working
like ______
Honeybee’s philosophy (18) “______”
Up to 1985, Honeybee had(19) ______ chains in the Philippines
In its international expansion, the successful chains were in (20) ______
The chain store of Honeybee in Singapore was(21) ______
In the future Honeybee should (22) ______ step by step.
查看答案
单项选择题

心内膜弹力纤维增生症与扩张型心肌病超声鉴别的重点在于（）。

A.左心室内径

B.左心室壁搏幅

C.心肌厚度

D.心内膜厚度

E.心瓣膜改变
查看答案