高压蒸汽灭菌法所用压力为（)，维持时间为（)，能达到的温度是（)。

It was not until he came back______he knew the police were looking for him.

A．which

B．since

C．that

D．before

I knew he was the man the police were looking for______I saw him in the supermarket.

A．quickly

B．promptly

C．swiftly

D．instantly

A．which

B．since

C．that

D．before

Sank police were investigating a possible child luring case near a primary school.

It happened on Tuesday afternoon, during the lunch hour. Mary, a student of John Lake School was approached by two men in a black van. They tried to lure her into the van. She refused and ran away. When she arrived at school, she reported it to the school staff.

The school and the police took it seriously. The schools wrote a letter to parents immediately, informing them of the case and making safety suggestions. Police are looking into the matter.

Police responded to the case as soon as they received the report. "It's a matter of public safety," said the police spokesperson. "We want to make sure everybody, including kids, adults and people out and about are safe. So, we take this very seriously."

Police were making some safety suggestions for the students. Police asked students to always be on their guard when walking to school. Kids were encouraged to walk in pairs and walk where it's well lit. One of the police officer said, "…Students should try to walk where there are people around, and always let somebody, your family or friends, know where you are going."

1.The two men in the black van _______.

A.knew Mary

B.was the school staff

C.probably wanted to lure Mary

2.Mary is probably a__________ student.

A.kindergarten(幼儿园)

B.primary school

C.middle school

3._____ took the case seriously.

A.The schools

B.The police

C.Both of the above

4.In order to be safe when going to school, kids should _____.

A.go to school on their own

B.take self-defense sprayers(自卫喷雾器)

C.not tell anyone where they’re going

5.This case indicated that ______ should pay attention to the safety problems.

A.the public

B.the parents

C.only school kids

Which of the following sentences is INCORRECT A . Poultry are very expensive in the city . B . New machinery were introduced in the factory . C . The police are investigating the murder case D . The militia were called out to rescue flood victims

A．Poultry are very expensive in the city ．

B．New machinery were introduced in the factory ．

C．The police are investigating the murder case

D．The militia were called out to rescue flood victims ．

luring case near a primary school. It happened on Tuesday afternoon, during the lunch hour. Mary, a student of John Lake School was approached by two men in a black van. She refused and ran away. When she arrived at school, she reported it to the school staff. The schools and the police took it seriously. The schools wrote a letter to parents immediately, informing them of the case and making safety suggestions. Police are looking into the matter. Police responded to the case as soon as they received the report. "It's a matter of public safety," said the police spokesperson. "We want to make sure everybody, including kids, adults and people out and about are safe.So, we take this very seriously." Police were making some safety suggestions for the students. Police asked students to always be on their guard when walking to school.Kids were encouraged to walk in pairs and walk in the daylight where it's well lit. One of the police officer said, "… Students should try to walk where there are people around, and always let somebody, your family or friends, know where you are going."

1. The two men in the black van ().

A. knew Mary

B. was the school staff

C. probably wanted to lure Mary

2. Mary is probably a() school student.

A. kindergarten(幼儿园)

B. primary

C. middle

3.() too the case seriously.

A. The schools

B. The police

C. Both of the above

4. In order to be safe when going to school, kids should()

A. go to school on their own

B. take self-defense sprayers(自卫喷雾器)

C. not tell anyone where they’re going

5. This case indicated that() should pay attention to the safety problems.

A. the public

B. the parents

C. only school kids