[单选题]__________assessment is based on a fixed standard that is usually the ultimate goal which thestudents are expected to achieve at the end of the course.
A.Criterion-referenced
B.Norm-referenced
C.Summative
D.Diagnostic

[单选题]When a teacher says to the whole class, "Stand up and act out the dialogue", he/she is playing the role of a (n)__________.
A.monitor
B.organizer
C.assessor
D.prompter

[单选题]________assessment is designed to provide a measure of performance that is in interpretable in terms of an individual's relative standing in some known group.
A.Criterion-referenced
B.Norm-referenced
C.Formative
D.Summative

[单选题]__________assessment is designed to provide a measure of performance that is it interpretable in terms of an individual's relative standing in some known group.
A.Criterion-referenced
B.Norm-referenced
C.Formative
D.Summative

[单选题]__________ assessment is used to measure how the performance of a particular student or group of students compares with that of another.
A.Criterion-referenced
B.Norm-referenced
C.Formative
D.Summative

[单选题]__________assessment is used to measure how the performance of a particular student or group of students compares with that of another.
A.Criterion-referenced
B.Norm-referenced
C.Formative
D.Summative

[简答题]简述形成性评价(formative assessment)的含义(4 分)，列举两种形成性评价的方法或手段(8 分)，并提出实施中应该注意的两个问题(8 分。

[单选题]He came to dinner and my mom fixed a roast, prime rib, pie, yoghurt, drinks, and all that kind of__________, and it was really good.
A.meat
B.stuff
C.staff
D.dish

[单选题]The search was based on the same combination of concepts and search terms and______another 176 publications.
A.yielded
B.offered
C.provided
D.supplied

[单选题]The situational approach is a situation-based language teaching method which focuses on_______.
A.grammar and vocabularies
B.oral language and sentence patterns
C.speaking and listening
D.pronunciation and speaking

[单选题]Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and are also the important curriculum resources except textbook．
A.game activities
B.labour activities
C.attitude
D.direct experience

[单选题]There are different ways to perform IP based DoS Attacks. The most common IP based DoS attack is that an attacker sends an extensive amount of connection establishment（ ）(e.g. TCP SYN requests) to establish hanging connections with the controller or a DPS. Such a way, the attacker can consume the network resources which should be available for legitimate users. In other（ ）, the attacker inserts a large amount of（ ）packets to the data plane by spoofing all or part of the header fields with random values. These incoming packets will trigger table-misses and send lots of packet-in flow request messages to the network controller to saturate the controller resources. In some cases, an（请作答此空）who gains access to DPS can artificially generate lots of random packet-in flow request messages to saturate the control channel and the controller resources. Moreover, the lack of diversity among DPSs fuels fuels the fast propagation of such attacks.Legacy?mobile backhaul devices are inherently protected against the propagation of attacks due to complex and vendor specific equipment. Moreover, legacy backhaul devices do not require frequent communication with core control devices in a manner similar to DPSs communicating with the centralized controller. These features minimize both the impact and propagation of DoS attacks. Moreover, the legacy backhaul devices are controlled as a joint effort of multiple network element. For instance, a single Long Term Evilution（LT E）eNodeB ?is connected up to 32 MMEs. Therefore, DoS/DDoS attack on a single core element will not terminate the entire operation of a backhaul device（）the network.
A.or
B.administrator
C.editor
D.attacker