在下列价值工程活动的结果中，存在价值偏离的是______。 A．投资增加，功能提高，

句型转换，每空一词。

1. I'm certain that he's telling the truth.

    There's ________ that he's telling the truth.

2. They are busy with their test and have no time to have a rest.

    They ________ in their test and have no time to have a rest.

3. The house which is being built is our classroom.

    The house ________ is our classroom.

4. All of us must make decisions wisely about what is to be done every day.

    All of us must make ________ decisions about what ________ every day.

5. I would rather be punished than tell a lie.

    I ________ punished rather than tell a lie.

一种收录机，连续两次降价10%后的售价是405元，那么原价是( )。

A．490

B．500元

C．520元

D．560元

与缩水率相仿，热收缩率也是织物各种热处理前后长度的差值对处理前长度之比的百分率。

用人单位为劳动者个人提供的职业病防护用品（）其职业的要求。

A.不符合

B.不必满足

C.只需部分符合

D.必须符合

防腐剂的主要作用是（）饲料发酵、腐败，常见品种包括苯甲酸钠、山梨酸、脱氢醋酸、对羟基苯甲酸酯等。

A.促进

B.加速

C.减少

D.延缓或阻止