单选题：Why do researchers develop a new device to monitor signs of

题目分类：理工类
题目类型：单选题
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题目内容：

Why do researchers develop a new device to monitor signs of landslides? A．Because the new device can，measure the site directl
B．Because the new device can be sunk into boreholes or fixed above groun
C．Because the common methods can cause false alarm
D．Because the common methods are useles

参考答案：

答案解析：

所谓神话，是上古时代的人们为解释和描叙其所接触的自然现象、社会现象而幻想出来的带有艺术意味的集体口头创作。以下各项所列

所谓神话，是上古时代的人们为解释和描叙其所接触的自然现象、社会现象而幻想出来的带有艺术意味的集体口头创作。以下各项所列都属于神话的一项是（　　）。 A．女娲补

分类：理工类题型：单选题

A．electromagnetic energyB．electromagnetic energy travels thr

A．electromagnetic energyB．electromagnetic energy travels through spaceC．came fro

分类：理工类题型：单选题

Many graduates are employed__________.

Many graduates are employed__________.

分类：理工类题型：单选题

请在（55）处填上最佳答案。

请在（55）处填上最佳答案。A．the B．/ C．a D．an

分类：理工类题型：单选题

he passage implies that

he passage implies that A．it is not easy to persuade manufacturers to adopt the

分类：理工类题型：单选题